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  • docker 基本使用

    1.1 docker基础

        参考博客:https://blog.51cto.com/lizhenliang

      1、什么是docker

          1. Docker是使用最广泛的开源容器引擎

          2. 一种操作系统基本的虚拟化技术

          3. 一种简单的应用程序打包工具

          4. 依赖Linux内核特性:Namespace(资源隔离) 和 Cgroup(资源限制)

          注:每个容器拥有一套和宿主机完全隔离的文件系统(共用linux内核),程序在这个虚拟容器里运行,就好像在真实的物理机上运行一样。

          容器:

            1)容器是一个操作系统级别下的虚拟化技术,运行一个容器就行运行一个进程一样

            2)容器依赖linux内核特性:Namespace(资源隔离)和Cgroups(资源限制)

      2、docker思想

          1. Docker的思想源于集装箱,集装箱解决了什么问题呢?
          2. 在早期运输货物需要不同分类的船,例如运输水果的船,运输生活用品的船
          3. 有了集装箱后,在大船上,可以把货物分类到不同的集装箱中,水果一个集装箱,生活用品一个集装箱
          4. 它们之间互不影响,只要把货物封装好集装箱里,就可以把不同类的货物一起运走。
          5. 通过Docker logo也可以看出所以然来,Docker就像大船,集装箱就是容器。
          6. 一条鲸鱼拖着若干个集装箱的经典形象已经深入人心。

          

       3、docker 与 虚拟机比较

          1. docker设计小巧,部署迁移快速,运行高效,按照应用隔离,管理人员可以看到所有容器的内容。

          2. 虚拟化技术比较臃肿,需要先创建新的系统,按照系统隔离,管理员无法看到系统内部信息。

          举例

            1)Docker就是手机中的各种APP,只需要一个系统就可以下载自己所需的应用

            2)虚拟化技术相当于苹果手机安装一个庞大软件,这个软件上安装安卓系统、魅族系统等,每个系统上还要安装各类应用。

          

            

      4、docker版本  

          1. 社区版(Community Edition, CE)

          2. 企业版(Enterprise Edition, EE)

    1.2 docker技术应用场景

      1、场景一:节省项目环境部署时间

          1)单项目打包

            1. 每次部署项目到测试、生产等环境,都要部署一大堆依赖的软件、工具,时间久,出错概率大。

            2. Docker主要理念就是环境打包部署,可在任意Docker Engine运行。

            3. 我们只需要将每个项目环境打包到镜像,push到镜像仓库,当有需要部署这个项目时,
                直接pull镜像启动容器,这个项目就可以访问了!一次构建多次部署,一劳永逸。

          2)整套项目打包

            1. 比如有一个产品可以整套部署到客户那里,以往都是派一名实施工程师到客户那部署。

            2. 如果用了Docker,我们可以前期将这套项目封装打包起来,实现一键部署,分分钟钟搞定,就不需要再派人过去了。比如官方的Docker Compose编排工具。

          3)新开源技术试用

            1. 有时,我们想调研一些开源项目,我们可以直接从公共镜像仓库pull项目官方做好镜像启动容器即可。

      2、场景二:环境一致性

          1. 项目在开发电脑本地运行没问题,到了测试或生产环境就运行不起来。

          2. Docker将项目环境打包成镜像,可以在任何Docker Engine部署。

      3、场景三:持续集成

          1. 一个项目版本快速迭代的测试场景,需要一个合理的CI(持续集成)/CD(持续部署)环境支撑。

          2. CI/CD是一个周期性自动化项目测试流程,包括构建、部署、测试、发布等工作,很少需要人工干预。

          3. Docker通过项目镜像构建和快速部署,打通测试环境与生产环境,高度保持多个环境之间一致性。

      4、场景四:微服务

          1. 微服务指尽可能细粒度拆分业务程序架构,由多个独立服务组成业务系统。

          2. Docker容器作为这些独立服务的部署单元,每个服务单独部署到一个docker容器中。

    1.3 docker安装

      1、docker安装参考官方文档

          1. docker官方文档:https://docs.docker.com/

          2. centos安装docker:https://docs.docker.com/install/linux/docker-ce/centos/

          注:docker CE只支持 centos7 不支持centos6

      2、docker安装

    # 1)安装依赖包
    yum install -y yum-utils device-mapper-persistent-data lvm2
    
    # 2)添加Docker软件包源(否则doker安装的不是新版本)
    yum-config-manager 
    --add-repo 
    https://download.docker.com/linux/centos/docker-ce.repo
    
    # 3)安装Docker CE
    yum install -y docker-ce
    
    # 4)启动Docker服务并设置开机启动
    systemctl start docker
    systemctl enable docker
    
    # 5)测试docker是否安装成功(hello-world是官方提供的一个测试镜像)
    docker run hello-world
    
    # 6)查看docker基本信息
    docker info
    docker version

      3、docker简单使用(创建一个ngixn容器)

     # 1、创建一个nginx容器
     docker run -it nginx
     
     # 2、查看docker运行的容器(可以获取到这个容器的id)
     docker ps
     
     # 3、访问这个容器
     # 进入这个nginx容器(进入的文件系统和宿主机是完全隔离的,有自己独立的文件系统)
     docker exec -it 73877e65c07d bash
     
     # 4、查看当前容器的 IP
     docker inspect 73877e65c07d   # 73877e65c07d是通过docekr ps查看到的容器ID
     curl 172.17.0.2               # 测试这个nginx容器是否可以访问
    举例:创建一个nginx容器

    1.4 镜像管理

        参考博客: https://www.cnblogs.com/sparkdev/p/9092082.html

      1、什么是docker镜像

          1. docker镜像不包含Linux内核而又精简的Linux操作系统

          2. docker镜像是一个分层存储的文件,一个镜像可以创建N个容器

          3. 可以这么理解,docker 镜像是 docker 容器的静态视角,docker 容器是 docker 镜像的运行状态。

          4. 容器只是对docker镜像的引用,如果docker镜像删除,此镜像创建的容器也都失效

      2、docker镜像与容器的区别

          1. 当由 ubuntu:14.04 镜像启动容器时,ubuntu:14.04 镜像的镜像层内容将作为容器的 rootfs;

          2. 而 ubuntu:14.04 镜像的 json 文件,会由 docker daemon 解析,并提取出其中的容器执行入口 CMD 信息,
              以及容器进程的环境变量 ENV 信息,最终初始化容器进程。

          3. 当然,容器进程的执行入口来源于镜像提供的 rootfs。

            

      3、rootfs

          1. rootfs 是 docker 容器在启动时内部进程可见的文件系统,即 docker 容器的根目录。

          2. rootfs 通常包含一个操作系统运行所需的文件系统,例如可能包含典型的类 Unix 操作系统中的目录系统,
              如 /dev、/proc、/bin、/etc、/lib、/usr、/tmp 及运行 docker 容器所需的配置文件、工具等。

          3. 在传统的 Linux 操作系统内核启动时,首先挂载一个只读的 rootfs,当系统检测其完整性之后,再将其切换为读写模式。

          4. 而在 docker 架构中,当 docker daemon 为 docker 容器挂载 rootfs 时,沿用了 Linux 内核启动时的做法,即将 rootfs 设为只读模式。

          5. 在挂载完毕之后,利用联合挂载(union mount)技术在已有的只读 rootfs 上再挂载一个读写层。

          6. 这样,可读写的层处于 docker 容器文件系统的最顶层,其下可能联合挂载了多个只读的层,

          7. 只有在 docker 容器运行过程中文件系统发生变化时,才会把变化的文件内容写到可读写层,并隐藏只读层中的旧版本文件。

      4、容器读写层

          1. 容器其实是在镜像的最上面加了一层读写层,在运行容器里文件改动时,会先从镜像里要写的文件复制到容器自己的文件系统中(读写层)。

          2. 如果容器删除了,最上面的读写层也就删除了,改动也就丢失了。

          3. 所以无论多少个容器共享一个镜像,所做的写操作都是从镜像的文件系统中复制过来操作的,并不会修改镜像的源文件

          4. 若想持久化这些改动,可以通过docker commit 将容器保存成一个新镜像

    [root@linux-node4 diff]# docker run -itd --name=web1 -p 192.168.56.14:81:80 nginx:latest
    [root@linux-node4 diff]# docker inspect web1
    [
        {
            # 存储驱动
            "GraphDriver": {
                "Data": {
                    "LowerDir": "/var/lib/docker/overlay2/51692869029f819494bb402dc70aa2869b8d1848c3b65c549a010a260e44cc13-init/diff:/var/lib/docker/overlay2/09fa1314e484781dfc1fb25a6cf5df2502fe35dea9025a373a3cb0202732ccce/diff:/var/lib/docker/overlay2/162ec5c9be56e5d718011c09ed087eda04b755e1a68bd1953c60f175e6635e68/diff:/var/lib/docker/overlay2/7c1b27ff59a397ae7d6bd106db579e90476f57bb1ecef9fcb1a6f1ad5ce43b7c/diff",
                    "MergedDir": "/var/lib/docker/overlay2/51692869029f819494bb402dc70aa2869b8d1848c3b65c549a010a260e44cc13/merged",
                    "UpperDir": "/var/lib/docker/overlay2/51692869029f819494bb402dc70aa2869b8d1848c3b65c549a010a260e44cc13/diff",
                    "WorkDir": "/var/lib/docker/overlay2/51692869029f819494bb402dc70aa2869b8d1848c3b65c549a010a260e44cc13/work"
                },
                "Name": "overlay2"
            },
            "NetworkSettings": {
                "Ports": {
                    "80/tcp": [
                        {
                            "HostIp": "192.168.56.14",
                            "HostPort": "81"
                        }
                    ]
                },
                "MacAddress": "02:42:ac:11:00:02",
                "Networks": {
                    "bridge": {
                        "Gateway": "172.17.0.1",
                        "IPAddress": "172.17.0.2",
                        "IPPrefixLen": 16,
                    }
                }
            }
        }
    ]
    [root@linux-node4 diff]# cd /var/lib/docker/overlay2/51692869029f819494bb402dc70aa2869b8d1848c3b65c549a010a260e44cc13
    [root@linux-node4 51692869029f819494bb402dc70aa2869b8d1848c3b65c549a010a260e44cc13]# ll    # 查看docker工作目录都哪些内容
    diff  link  lower  merged  work
    diff      # 读写层的差异(在读写层做的操作由这个容器单独管理)
    merged    # 引用docker进行中的文件系统
    work      # 项目工作目录
    查看docker容器工作目录中内容

            

      5、docker镜像从哪里来

          1. Docker Hub是由Docker公司负责维护的公共注册中心,包含大量的容器镜像,Docker工具默认从这个公共镜像库下载镜像。

          2. 地址:https://hub.docker.com/explore     # docker官方镜像和使用方法参考地址

          3. 配置镜像加速器:https://www.daocloud.io/mirror

               [root@linux-node2 ~]#  curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://f1361db2.m.daocloud.io       

               [root@linux-node2 ~]#  cat /etc/docker/daemon.json           # 执行上面命令后就会将镜像源修改成国内的地址
               {"registry-mirrors": ["http://f1361db2.m.daocloud.io"]}

               [root@linux-node2 ~]# systemctl restart docker                  # 重启docker生效

    1.5 docker常用命令

      1、docker镜像管理常用命令

    [root@linux-node4 diff]# docker help                           # 查看docker帮助
    [root@linux-node4 diff]# docker image --help                   # 查看 docker中 镜像相关帮助
    [root@linux-node4 diff]# docker image ls                       # 查看当前所有镜像
    [root@linux-node4 diff]# docker image inspect nginx            # 查看指定镜像(nginx镜像)详细信息
    [root@linux-node4 diff]# docker pull nginx:1.14                # 下载指定版本镜像 nginx
    [root@linux-node4 diff]# docker image rm nginx:1.14            # 删除nginx 1.14版本
    [root@linux-node4 diff]# docker image save nginx > nginx.tar   # 导出niginx镜像

      2、docker创建容器常用命令

    -d:   后台运行容器,并返回容器ID;
    -i:   以交互模式运行容器,通常与 -t 同时使用;
    -t:   为容器重新分配一个伪输入终端,通常与 -i 同时使用;
    -P:   随机端口映射,容器内部端口随机映射到主机的高端口
    -p:   指定端口映射,格式为:主机(宿主)端口:容器端口
    --name="nginx-lb":   为容器指定一个名称;
    --dns 8.8.8.8:   指定容器使用的DNS服务器,默认和宿主一致;
    docker run 常用参数
    --dns-search example.com: 指定容器DNS搜索域名,默认和宿主一致;
    
    -h "mars": 指定容器的hostname;
    
    -e username="ritchie": 设置环境变量;
    
    --env-file=[]: 从指定文件读入环境变量;
    
    --cpuset="0-2" or --cpuset="0,1,2": 绑定容器到指定CPU运行;
    
    -m :设置容器使用内存最大值;
    
    --net="bridge": 指定容器的网络连接类型,支持 bridge/host/none/container: 四种类型;
    
    --link=[]: 添加链接到另一个容器;
    
    --expose=[]: 开放一个端口或一组端口;
    
    --volume , -v:    绑定一个卷
    
    -a stdin: 指定标准输入输出内容类型,可选 STDIN/STDOUT/STDERR 三项;
    docker run其他参数
    [root@linux-node4 diff]# docker run --help                              # 查看创建容器帮助
    [root@linux-node4 diff]# docker run -it centos                          # 创建centos镜像并进入终端
    [root@linux-node4 diff]# docker run -d nginx                            # 后台启动nginx容器
    [root@linux-node4 diff]# docker stop 6bb09dce461f                       # 关闭一个容器
    [root@linux-node4 diff]# docker ps -l                                         # 查看最近运行的容器
    [root@linux-node4 diff]# docker run -itd centos                         # 启用一个伪终端守护centos容器
    [root@linux-node4 diff]# docker container run -d --name web3 -e test=123456 -p 8800:80 -h webhostname --restart always nginx
    -d                   # 后台启动nginx容器
    --name web3          # 自定义容器名字(默认会是一段随机字符串)
    -e test=123456       # 启动容器添加变量 test=123456 (echo $test)
    -p 8800:80           # 宿主机的8800端口映射到docker容器的80端口中
    -h webhostname       # docker容器主机名 (a300f394af88)
    --restart always     # 宿主机重启自动拉起这个docker容器
    nginx                # 使用这个nginx镜像启动容器
    注:http://192.168.56.12:8800/     访问这个docker  nginx
    [root@linux-node4 diff]# docker logs web                                 # 查看上面启动的web容器的日志
    [root@linux-node4 diff]# docker exec -it web bash                        # 进入容器web

      3、容器资源限制

        1. 内存限额: 允许容器最多使用500M内存和100M的Swap,并禁用 OOM Killer

            docker run -d --name nginx03 --memory="500m" --memory-swap="600m" --oom-kill-disable nginx

        2. CPU限额:

            docker run -d --name nginx04 --cpus="1.5" nginx           # 允许容器最多使用一个半的CPU

            docker run -d --name nginx05 --cpus=".5" nginx            # 允许容器最多使用50%的CPU

      4、docker管理容器常用命令

            docker ps                 # 仅列出当前运行的容器
            docker ps -l              # 列出最新创建得容器
            docker ps -a             # 列出素有容器(包括 未运行的)

            docker inspect web4                   # 列出指定容器的详细信息

            #### 持久化容器

            docker exec -it web4 bash                                # 进入容器web4中
            touch 1.txt 2.txt                                                 # 对容器进行修改
            docker commit web4 nginx:web4                     # 将修改后的web4容器提交为一个新镜像 nginx:web4
            docker images                                                  # 可以看到 多了一个 TAG标记为 web4 的镜像
            docker run -d --name web4-1 nginx:web4        # 使用刚刚提交的镜像web4创建一个容器web4-1
            docker exec -it web4-1 bash                             # 进入web4-1的bash环境

            #### 从宿主机复制文件到docker容器
            docker cp nginx.tar web4-1:/home                    # 将宿主机nginx.tar文件拷贝到容器web4-1的/home目录中
            docker exec -it web4-1 ls /home                       # 在容器web4-1中执行 "ls /home" 命令

            #### 容器常用查询命令
            docker logs web4-1                                           # 查看web4-1中控制台日志
            docker port 55f870061ed9                                 # 查看指定容器端口映射
            docker top 00f7ddc96622                                  # 查看容器中有哪些进程
            docker stats 00f7ddc96622                               # 查看容器资源使用情况

            ##### 启动、停止、删除 容器
            docker ps -a                                                     # 列出素有容器(包括 未运行的)
            docker start web                                               # 启动容器web      
            docker stop web                                               # 停止容器web
            docker rm web

    1.6 docker将数据挂载到容器的三种方式

      1、Docker提供三种方式将数据从宿主机挂载到容器中

          1)volumes:Docker管理宿主机文件系统的一部分(/var/lib/docker/volumes) 保存数据的最佳方式

          2)bind mounts:将宿主机上的任意位置的文件或者目录挂载到容器中, 就像软连接一样

          3)tmpfs:挂载存储在主机系统的内存中,而不会写入主机的文件系统(不常用)。

          区别:
            volume 是docker的宿主机文件系统一部分,只有docker可以进行更改,其他进程不能修改
            bind mounts 是挂载在宿主机文件系统的任意位置,除了docker所有进程都可以进行修改、

      2、管理卷
            docker volume create nginx-vol                            # 创建一个数据卷 nginx-vol

            docker volume ls                                                   # 查看宿主机数据卷信息

            docker volume inspect nginx-vol                           # 查看 nginx-vol 这个数据卷详细信息

            ls /var/lib/docker/volumes/nginx-vol/_data            # 详细信息中会显示 nginx-vol 这个卷实际在宿主机位置

            docker rm -f $(docker ps -a |awk '{print $1}')        # 删除所有容器

      3、volumes:将容器中的数据持久化到宿主机中

        1)用卷创建一个容器:

            docker run -d --name=nginx-test -p 88:80 --mount src=nginx-vol,dst=/usr/share/nginx/html nginx
                run -d                                                 # 后台启动一个nginx容器
                --name=nginx-test                             # 自定义容器名字(默认会是一段随机字符串)
                -p  88:80                                             # 将宿主机的88端口映射到容器的80端口
                --mount
                  src=nginx-vol,                               # 挂载数据卷名称nginx-vol
                  dst=/usr/share/nginx/html             # 将/usr/share/nginx/html文件挂载到nginx-vol数据卷中
                nginx                                                     # 使用这个nginx镜像启动容器

            vim /var/lib/docker/volumes/nginx-vol/_data/index.html       # 修改nginx的 index.html文件可以发现页面发生改变

            http://192.168.56.12:88/

        2)清理卷:
            docker stop nginx-test                                     # 关闭正在使用卷nginx-vol的容器nginx-test
            docker rm nginx-test                                       # 删除容器 nginx-test
            docker volume rm nginx-vol                            # 删除卷 nginx-vol

      4、bind mounts:将宿主机中的数据挂载到容器中

        1)用卷创建一个容器:

            docker run -d --name=nginx-test -p 88:80 --mount type=bind,src=/mnt/,dst=/usr/share/nginx/html nginx
                run -d                                                  # 后台启动一个nginx容器
                --name=nginx-test                              # 自定义容器名字(默认会是一段随机字符串)
                -p  88:80                                              # 将宿主机的88端口映射到容器的80端口
                --mount type=bind                              # 将/usr/share/nginx/html文件夹挂载到宿主机/mnt/文件夹中
                  src=/mnt/,                                   # 宿主机中挂载目录 /mnt/
                  dst=/usr/share/nginx/html           # 容器中/usr/share/nginx/html文件夹
                nginx                                                 # 使用这个nginx镜像启动容器

            docker exec -it nginx-test bash                       # 进入容器
            cd /usr/share/nginx/html                                  # 进入容器的挂载目录
            echo "hello I come here" > index.html            # 在目录中创建一个 index.html文件
            http://192.168.56.12:88/                                  # 可以在页面访问到 index.html首页

            vim /mnt/index.html                                         # 修改 /mnt/index.html 就等同修改容器中的index.html页面

         2)清理:
            docker stop nginx-test                                     # 关闭正在使用卷nginx-vol的容器nginx-test
            docker rm nginx-test                                       # 删除容器 nginx-test

        注意:
            1. 如果源文件/目录没有存在,不会自动创建,会抛出一个错误。
            2. 如果挂载目标在容器中非空目录,则该目录现有内容将被隐藏。

      5、Volume特点:
          1. 多个运行容器之间共享数据。
          2. 当容器停止或被移除时,该卷依然存在。
          3. 多个容器可以同时挂载相同的卷。
          4. 当明确删除卷时,卷才会被删除。
          5. 将容器的数据存储在远程主机或其他存储上
          6. 将数据从一台Docker主机迁移到另一台时,先停止容器,然后备份卷的目录(/var/lib/docker/volumes/)

      6、Bind Mounts特点:
          1. 从主机共享配置文件到容器。默认情况下,挂载主机/etc/resolv.conf到每个容器,提供DNS解析。
          2. 在Docker主机上的开发环境和容器之间共享源代码。例如,可以将Maven target目录挂载到容器中,每次在Docker主机
              上构建Maven项目时,容器都可以访问构建的项目包。
          3. 当Docker主机的文件或目录结构保证与容器所需的绑定挂载一致时

    1.7 容器网络

       1、网络模式

        • bridge(常用)
            –net=bridge
            默认网络,Docker启动后创建一个docker0网桥,默认创建的容器也是添加到这个网桥中。
        • host(常用)
            –net=host
            容器不会获得一个独立的network namespace,而是与宿主机共用一个。这就意味着容器不会有自己的网卡信息,而是使用宿主
            机的。容器除了网络,其他都是隔离的。
        • none(不常用)
            –net=none
            获取独立的network namespace,但不为容器进行任何网络配置,需要我们手动配置。
        • container(不常用)
            –net=container:Name/ID
            与指定的容器使用同一个network namespace,具有同样的网络配置信息,两个容器除了网络,其他都还是隔离的。
        • 自定义网络(最佳方式)
            与默认的bridge原理一样,但自定义网络具备内部DNS发现,可以通过容器名或者主机名容器之间网络通信。

    '''开启Linux系统的IP转发功能 '''
    # 1. 出于安全考虑,Linux系统默认是禁止数据包转发的。
    # 2. 所谓转发即当主机拥有多于一块的网卡时,将收到的数据包转发给其他网卡
    [root@linux-node4 ~]# vim /etc/sysctl.conf 
    net.ipv4.ip_forward=1
    [root@linux-node4 ~]# systemctl restart network
    [root@linux-node4 ~]# sysctl net.ipv4.ip_forward   # 输出为1时则证明是成功的
    ##### 1、下载busybox镜像用于测试
    docker pull busybox                       # 下载一个测试镜像,一些工具都有了
    docker run -it busybox                    # 进入busybox 默认 bash
    docker run -it --net=host busybox         # 以 host 网络模式进入bash
    
    ##### 2、自定义网络模式
    docker network create bs-test                     # 创建一个网络 bs-test
    docker run -it --name bs3 --net bs-test busybox   # 创建容器bst加入网络bs-test
    docker run -it --name bs4 --net bs-test busybox   # 创建容器bst加入网络bs-test
    ping bs3                                          # 在bs3和bs4容器中可以通过主机名ping通
    ping bs4
    docker start bs3                                  # 启动容器bs3
    docker exec -it bs3 sh                            # 进入bs3 bash环境
    
    
    ####3、container网络模式
    docker run -itd --name bs -p 99:80 busybox         # 创建一个名字为bs的容器,并将宿主机99端口映射到80端口
    docker run -d --name nginx01 --net container:bs nginx    # 使用nginx镜像创建一个容器名nginx01,加入到bs容器中
    http://192.168.56.12:99/
    docker exec -it bs sh                     
    # 注:bs容器中虽然没有nginx服务,但是可以访问nginx服务,因为nginx01容器加入了
    测试 自定义网络 和 container

    1.8 Dockerfile: 构建nginx项目镜像

    '''1.DOckerfile常用命令 '''
    FROM python:3.6                     # 指定拉取镜像版本
    ENV PYTHONUNBUFFERED 1              # 不缓冲stdin、stdout和stderr,直接把输出重定向到文件
    MAINITAINER zhangsan                # 指定作者
    RUN mkdri /code                     # 运行的linux命令
    WORKDIR /code                       # 指定项目工作根路径
    ADD . /code/                        # 将宿主机文件复制到镜像中
    COPY dj.conf /etc/nginx/conf.d      # docker内部文件拷贝
    VOLUME ["/data1","/data2"]          # 将宿主机文件夹挂载到容器中
    EXPOSE 8080                         # 暴露端口
    CMD ["sh","/code/start.sh"]         # 容器启动时要运行的命令
    CMD ["python", "manage.py", "runserver", "0:8000"]
    
    '''2.生成镜像并运行容器'''
    docker build -t nginx:v1 -f Dockerfile-nginx .         # 使用Dockerfile-nginx文件生成镜像 nginx:v1
    docker push linux-node4.example.com/test/nginx:v1      # 推送镜像到harbor中
    docker run -d -p 192.168.56.14:8000:8080 nginx:v1      # 运行docker容器

      1、使用 Dockerfile-nginx 文件构建一个基础镜像 nginx:v1

    FROM centos:7
    MAINTAINER www.ctnrs.com
    RUN yum install -y gcc gcc-c++ make 
        openssl-devel pcre-devel gd-devel 
        iproute net-tools telnet wget curl && 
        yum clean all && 
        rm -rf /var/cache/yum/*
    RUN wget http://nginx.org/download/nginx-1.15.5.tar.gz && 
        tar zxf nginx-1.15.5.tar.gz && 
        cd nginx-1.15.5 && 
        ./configure --prefix=/usr/local/nginx 
        --with-http_ssl_module 
        --with-http_stub_status_module && 
        make -j 4 && make install && 
        rm -rf /usr/local/nginx/html/* && 
        echo "ok" >> /usr/local/nginx/html/status.html && 
        cd / && rm -rf nginx-1.12.2* && 
        ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
    
    ENV PATH $PATH:/usr/local/nginx/sbin
    #COPY nginx.conf /usr/local/nginx/conf/nginx.conf
    WORKDIR /usr/local/nginx
    EXPOSE 80
    CMD ["nginx", "-g", "daemon off;"]
    Dockerfile-nginx

          docker build -t nginx:v1 -f Dockerfile-nginx .        # 使用 Dockerfile-nginx 文件构建一个基础镜像 nginx:v1

              -t nginx:v1                                             # 指定版本tag=v1

              -f Dockerfile-nginx                                # 指定dockerfile的名称

              .                                                            # 指定上下文(比如配置文件在那个位置等)

          docker images                                                    # 查看 nginx:v1 镜像是否创建成功

          docker run -d --name nginx01 -p 88:80 nginx:v1         # 使用 nginx:v1 镜像创建一个容器 nginx01

          http://192.168.56.12:88/status.html                             # 测试是否可以访问容器nginx01的web服务

      2、使用nginx:v1 基础镜像构建一个项目镜像

          vim Dockerfile

    FROM nginx:v1
    COPY index.html  /usr/local/nginx/html   # 需要在当前目录中创建index.html文件

          docker build -t nginx:v2 -f Dockerfile .                            # 使用Dockerfile创建一个项目镜像 nginx:v2

          docker run -d --name nginx02 -p 89:80 nginx:v2            # 使用 nginx:v2 创建一个容器 nginx02

          http://192.168.56.12:89/                                                 # 测试访问 容器 nginx:v2中的nginx服务

    1.9 Dockerfile: 构建php项目镜像

      1、使用 Dockerfile-nginx 文件构建一个基础镜像 nginx:v1

    FROM centos:7
    MAINTAINER www.ctnrs.com
    RUN yum install epel-release -y && 
        yum install -y gcc gcc-c++ make gd-devel libxml2-devel 
        libcurl-devel libjpeg-devel libpng-devel openssl-devel 
        libmcrypt-devel libxslt-devel libtidy-devel autoconf 
        iproute net-tools telnet wget curl && 
        yum clean all && 
        rm -rf /var/cache/yum/*
    
    RUN wget http://docs.php.net/distributions/php-5.6.36.tar.gz && 
        tar zxf php-5.6.36.tar.gz && 
        cd php-5.6.36 && 
        ./configure --prefix=/usr/local/php 
        --with-config-file-path=/usr/local/php/etc 
        --enable-fpm --enable-opcache 
        --with-mysql --with-mysqli --with-pdo-mysql 
        --with-openssl --with-zlib --with-curl --with-gd 
        --with-jpeg-dir --with-png-dir --with-freetype-dir 
        --enable-mbstring --with-mcrypt --enable-hash && 
        make -j 4 && make install && 
        cp php.ini-production /usr/local/php/etc/php.ini && 
        cp sapi/fpm/php-fpm.conf /usr/local/php/etc/php-fpm.conf && 
        sed -i "90a daemonize = no" /usr/local/php/etc/php-fpm.conf && 
        mkdir /usr/local/php/log && 
        cd / && rm -rf php* && 
        ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
    
    ENV PATH $PATH:/usr/local/php/sbin
    COPY php.ini /usr/local/php/etc/
    COPY php-fpm.conf /usr/local/php/etc/
    WORKDIR /usr/local/php
    EXPOSE 9000
    CMD ["php-fpm"]
    Dockerfile-php
    [PHP]
    
    ;;;;;;;;;;;;;;;;;;;
    ; About php.ini   ;
    ;;;;;;;;;;;;;;;;;;;
    ; PHP's initialization file, generally called php.ini, is responsible for
    ; configuring many of the aspects of PHP's behavior.
    
    ; PHP attempts to find and load this configuration from a number of locations.
    ; The following is a summary of its search order:
    ; 1. SAPI module specific location.
    ; 2. The PHPRC environment variable. (As of PHP 5.2.0)
    ; 3. A number of predefined registry keys on Windows (As of PHP 5.2.0)
    ; 4. Current working directory (except CLI)
    ; 5. The web server's directory (for SAPI modules), or directory of PHP
    ; (otherwise in Windows)
    ; 6. The directory from the --with-config-file-path compile time option, or the
    ; Windows directory (C:windows or C:winnt)
    ; See the PHP docs for more specific information.
    ; http://php.net/configuration.file
    
    ; The syntax of the file is extremely simple.  Whitespace and lines
    ; beginning with a semicolon are silently ignored (as you probably guessed).
    ; Section headers (e.g. [Foo]) are also silently ignored, even though
    ; they might mean something in the future.
    
    ; Directives following the section heading [PATH=/www/mysite] only
    ; apply to PHP files in the /www/mysite directory.  Directives
    ; following the section heading [HOST=www.example.com] only apply to
    ; PHP files served from www.example.com.  Directives set in these
    ; special sections cannot be overridden by user-defined INI files or
    ; at runtime. Currently, [PATH=] and [HOST=] sections only work under
    ; CGI/FastCGI.
    ; http://php.net/ini.sections
    
    ; Directives are specified using the following syntax:
    ; directive = value
    ; Directive names are *case sensitive* - foo=bar is different from FOO=bar.
    ; Directives are variables used to configure PHP or PHP extensions.
    ; There is no name validation.  If PHP can't find an expected
    ; directive because it is not set or is mistyped, a default value will be used.
    
    ; The value can be a string, a number, a PHP constant (e.g. E_ALL or M_PI), one
    ; of the INI constants (On, Off, True, False, Yes, No and None) or an expression
    ; (e.g. E_ALL & ~E_NOTICE), a quoted string ("bar"), or a reference to a
    ; previously set variable or directive (e.g. ${foo})
    
    ; Expressions in the INI file are limited to bitwise operators and parentheses:
    ; |  bitwise OR
    ; ^  bitwise XOR
    ; &  bitwise AND
    ; ~  bitwise NOT
    ; !  boolean NOT
    
    ; Boolean flags can be turned on using the values 1, On, True or Yes.
    ; They can be turned off using the values 0, Off, False or No.
    
    ; An empty string can be denoted by simply not writing anything after the equal
    ; sign, or by using the None keyword:
    
    ;  foo =         ; sets foo to an empty string
    ;  foo = None    ; sets foo to an empty string
    ;  foo = "None"  ; sets foo to the string 'None'
    
    ; If you use constants in your value, and these constants belong to a
    ; dynamically loaded extension (either a PHP extension or a Zend extension),
    ; you may only use these constants *after* the line that loads the extension.
    
    ;;;;;;;;;;;;;;;;;;;
    ; About this file ;
    ;;;;;;;;;;;;;;;;;;;
    ; PHP comes packaged with two INI files. One that is recommended to be used
    ; in production environments and one that is recommended to be used in
    ; development environments.
    
    ; php.ini-production contains settings which hold security, performance and
    ; best practices at its core. But please be aware, these settings may break
    ; compatibility with older or less security conscience applications. We
    ; recommending using the production ini in production and testing environments.
    
    ; php.ini-development is very similar to its production variant, except it is
    ; much more verbose when it comes to errors. We recommend using the
    ; development version only in development environments, as errors shown to
    ; application users can inadvertently leak otherwise secure information.
    
    ; This is php.ini-production INI file.
    
    ;;;;;;;;;;;;;;;;;;;
    ; Quick Reference ;
    ;;;;;;;;;;;;;;;;;;;
    ; The following are all the settings which are different in either the production
    ; or development versions of the INIs with respect to PHP's default behavior.
    ; Please see the actual settings later in the document for more details as to why
    ; we recommend these changes in PHP's behavior.
    
    ; display_errors
    ;   Default Value: On
    ;   Development Value: On
    ;   Production Value: Off
    
    ; display_startup_errors
    ;   Default Value: Off
    ;   Development Value: On
    ;   Production Value: Off
    
    ; error_reporting
    ;   Default Value: E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED
    ;   Development Value: E_ALL
    ;   Production Value: E_ALL & ~E_DEPRECATED & ~E_STRICT
    
    ; html_errors
    ;   Default Value: On
    ;   Development Value: On
    ;   Production value: On
    
    ; log_errors
    ;   Default Value: Off
    ;   Development Value: On
    ;   Production Value: On
    
    ; max_input_time
    ;   Default Value: -1 (Unlimited)
    ;   Development Value: 60 (60 seconds)
    ;   Production Value: 60 (60 seconds)
    
    ; output_buffering
    ;   Default Value: Off
    ;   Development Value: 4096
    ;   Production Value: 4096
    
    ; register_argc_argv
    ;   Default Value: On
    ;   Development Value: Off
    ;   Production Value: Off
    
    ; request_order
    ;   Default Value: None
    ;   Development Value: "GP"
    ;   Production Value: "GP"
    
    ; session.gc_divisor
    ;   Default Value: 100
    ;   Development Value: 1000
    ;   Production Value: 1000
    
    ; session.hash_bits_per_character
    ;   Default Value: 4
    ;   Development Value: 5
    ;   Production Value: 5
    
    ; short_open_tag
    ;   Default Value: On
    ;   Development Value: Off
    ;   Production Value: Off
    
    ; track_errors
    ;   Default Value: Off
    ;   Development Value: On
    ;   Production Value: Off
    
    ; url_rewriter.tags
    ;   Default Value: "a=href,area=href,frame=src,form=,fieldset="
    ;   Development Value: "a=href,area=href,frame=src,input=src,form=fakeentry"
    ;   Production Value: "a=href,area=href,frame=src,input=src,form=fakeentry"
    
    ; variables_order
    ;   Default Value: "EGPCS"
    ;   Development Value: "GPCS"
    ;   Production Value: "GPCS"
    
    ;;;;;;;;;;;;;;;;;;;;
    ; php.ini Options  ;
    ;;;;;;;;;;;;;;;;;;;;
    ; Name for user-defined php.ini (.htaccess) files. Default is ".user.ini"
    ;user_ini.filename = ".user.ini"
    
    ; To disable this feature set this option to empty value
    ;user_ini.filename =
    
    ; TTL for user-defined php.ini files (time-to-live) in seconds. Default is 300 seconds (5 minutes)
    ;user_ini.cache_ttl = 300
    
    ;;;;;;;;;;;;;;;;;;;;
    ; Language Options ;
    ;;;;;;;;;;;;;;;;;;;;
    
    ; Enable the PHP scripting language engine under Apache.
    ; http://php.net/engine
    engine = On
    
    ; This directive determines whether or not PHP will recognize code between
    ; <? and ?> tags as PHP source which should be processed as such. It is
    ; generally recommended that <?php and ?> should be used and that this feature
    ; should be disabled, as enabling it may result in issues when generating XML
    ; documents, however this remains supported for backward compatibility reasons.
    ; Note that this directive does not control the <?= shorthand tag, which can be
    ; used regardless of this directive.
    ; Default Value: On
    ; Development Value: Off
    ; Production Value: Off
    ; http://php.net/short-open-tag
    short_open_tag = Off
    
    ; Allow ASP-style <% %> tags.
    ; http://php.net/asp-tags
    asp_tags = Off
    
    ; The number of significant digits displayed in floating point numbers.
    ; http://php.net/precision
    precision = 14
    
    ; Output buffering is a mechanism for controlling how much output data
    ; (excluding headers and cookies) PHP should keep internally before pushing that
    ; data to the client. If your application's output exceeds this setting, PHP
    ; will send that data in chunks of roughly the size you specify.
    ; Turning on this setting and managing its maximum buffer size can yield some
    ; interesting side-effects depending on your application and web server.
    ; You may be able to send headers and cookies after you've already sent output
    ; through print or echo. You also may see performance benefits if your server is
    ; emitting less packets due to buffered output versus PHP streaming the output
    ; as it gets it. On production servers, 4096 bytes is a good setting for performance
    ; reasons.
    ; Note: Output buffering can also be controlled via Output Buffering Control
    ;   functions.
    ; Possible Values:
    ;   On = Enabled and buffer is unlimited. (Use with caution)
    ;   Off = Disabled
    ;   Integer = Enables the buffer and sets its maximum size in bytes.
    ; Note: This directive is hardcoded to Off for the CLI SAPI
    ; Default Value: Off
    ; Development Value: 4096
    ; Production Value: 4096
    ; http://php.net/output-buffering
    output_buffering = 4096
    
    ; You can redirect all of the output of your scripts to a function.  For
    ; example, if you set output_handler to "mb_output_handler", character
    ; encoding will be transparently converted to the specified encoding.
    ; Setting any output handler automatically turns on output buffering.
    ; Note: People who wrote portable scripts should not depend on this ini
    ;   directive. Instead, explicitly set the output handler using ob_start().
    ;   Using this ini directive may cause problems unless you know what script
    ;   is doing.
    ; Note: You cannot use both "mb_output_handler" with "ob_iconv_handler"
    ;   and you cannot use both "ob_gzhandler" and "zlib.output_compression".
    ; Note: output_handler must be empty if this is set 'On' !!!!
    ;   Instead you must use zlib.output_handler.
    ; http://php.net/output-handler
    ;output_handler =
    
    ; Transparent output compression using the zlib library
    ; Valid values for this option are 'off', 'on', or a specific buffer size
    ; to be used for compression (default is 4KB)
    ; Note: Resulting chunk size may vary due to nature of compression. PHP
    ;   outputs chunks that are few hundreds bytes each as a result of
    ;   compression. If you prefer a larger chunk size for better
    ;   performance, enable output_buffering in addition.
    ; Note: You need to use zlib.output_handler instead of the standard
    ;   output_handler, or otherwise the output will be corrupted.
    ; http://php.net/zlib.output-compression
    zlib.output_compression = Off
    
    ; http://php.net/zlib.output-compression-level
    ;zlib.output_compression_level = -1
    
    ; You cannot specify additional output handlers if zlib.output_compression
    ; is activated here. This setting does the same as output_handler but in
    ; a different order.
    ; http://php.net/zlib.output-handler
    ;zlib.output_handler =
    
    ; Implicit flush tells PHP to tell the output layer to flush itself
    ; automatically after every output block.  This is equivalent to calling the
    ; PHP function flush() after each and every call to print() or echo() and each
    ; and every HTML block.  Turning this option on has serious performance
    ; implications and is generally recommended for debugging purposes only.
    ; http://php.net/implicit-flush
    ; Note: This directive is hardcoded to On for the CLI SAPI
    implicit_flush = Off
    
    ; The unserialize callback function will be called (with the undefined class'
    ; name as parameter), if the unserializer finds an undefined class
    ; which should be instantiated. A warning appears if the specified function is
    ; not defined, or if the function doesn't include/implement the missing class.
    ; So only set this entry, if you really want to implement such a
    ; callback-function.
    unserialize_callback_func =
    
    ; When floats & doubles are serialized store serialize_precision significant
    ; digits after the floating point. The default value ensures that when floats
    ; are decoded with unserialize, the data will remain the same.
    serialize_precision = 17
    
    ; open_basedir, if set, limits all file operations to the defined directory
    ; and below.  This directive makes most sense if used in a per-directory
    ; or per-virtualhost web server configuration file.
    ; http://php.net/open-basedir
    ;open_basedir =
    
    ; This directive allows you to disable certain functions for security reasons.
    ; It receives a comma-delimited list of function names.
    ; http://php.net/disable-functions
    disable_functions =
    
    ; This directive allows you to disable certain classes for security reasons.
    ; It receives a comma-delimited list of class names.
    ; http://php.net/disable-classes
    disable_classes =
    
    ; Colors for Syntax Highlighting mode.  Anything that's acceptable in
    ; <span style="color: ???????"> would work.
    ; http://php.net/syntax-highlighting
    ;highlight.string  = #DD0000
    ;highlight.comment = #FF9900
    ;highlight.keyword = #007700
    ;highlight.default = #0000BB
    ;highlight.html    = #000000
    
    ; If enabled, the request will be allowed to complete even if the user aborts
    ; the request. Consider enabling it if executing long requests, which may end up
    ; being interrupted by the user or a browser timing out. PHP's default behavior
    ; is to disable this feature.
    ; http://php.net/ignore-user-abort
    ;ignore_user_abort = On
    
    ; Determines the size of the realpath cache to be used by PHP. This value should
    ; be increased on systems where PHP opens many files to reflect the quantity of
    ; the file operations performed.
    ; http://php.net/realpath-cache-size
    ;realpath_cache_size = 16k
    
    ; Duration of time, in seconds for which to cache realpath information for a given
    ; file or directory. For systems with rarely changing files, consider increasing this
    ; value.
    ; http://php.net/realpath-cache-ttl
    ;realpath_cache_ttl = 120
    
    ; Enables or disables the circular reference collector.
    ; http://php.net/zend.enable-gc
    zend.enable_gc = On
    
    ; If enabled, scripts may be written in encodings that are incompatible with
    ; the scanner.  CP936, Big5, CP949 and Shift_JIS are the examples of such
    ; encodings.  To use this feature, mbstring extension must be enabled.
    ; Default: Off
    ;zend.multibyte = Off
    
    ; Allows to set the default encoding for the scripts.  This value will be used
    ; unless "declare(encoding=...)" directive appears at the top of the script.
    ; Only affects if zend.multibyte is set.
    ; Default: ""
    ;zend.script_encoding =
    
    ;;;;;;;;;;;;;;;;;
    ; Miscellaneous ;
    ;;;;;;;;;;;;;;;;;
    
    ; Decides whether PHP may expose the fact that it is installed on the server
    ; (e.g. by adding its signature to the Web server header).  It is no security
    ; threat in any way, but it makes it possible to determine whether you use PHP
    ; on your server or not.
    ; http://php.net/expose-php
    expose_php = On
    
    ;;;;;;;;;;;;;;;;;;;
    ; Resource Limits ;
    ;;;;;;;;;;;;;;;;;;;
    
    ; Maximum execution time of each script, in seconds
    ; http://php.net/max-execution-time
    ; Note: This directive is hardcoded to 0 for the CLI SAPI
    max_execution_time = 30
    
    ; Maximum amount of time each script may spend parsing request data. It's a good
    ; idea to limit this time on productions servers in order to eliminate unexpectedly
    ; long running scripts.
    ; Note: This directive is hardcoded to -1 for the CLI SAPI
    ; Default Value: -1 (Unlimited)
    ; Development Value: 60 (60 seconds)
    ; Production Value: 60 (60 seconds)
    ; http://php.net/max-input-time
    max_input_time = 60
    
    ; Maximum input variable nesting level
    ; http://php.net/max-input-nesting-level
    ;max_input_nesting_level = 64
    
    ; How many GET/POST/COOKIE input variables may be accepted
    ; max_input_vars = 1000
    
    ; Maximum amount of memory a script may consume (128MB)
    ; http://php.net/memory-limit
    memory_limit = 128M
    
    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
    ; Error handling and logging ;
    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
    
    ; This directive informs PHP of which errors, warnings and notices you would like
    ; it to take action for. The recommended way of setting values for this
    ; directive is through the use of the error level constants and bitwise
    ; operators. The error level constants are below here for convenience as well as
    ; some common settings and their meanings.
    ; By default, PHP is set to take action on all errors, notices and warnings EXCEPT
    ; those related to E_NOTICE and E_STRICT, which together cover best practices and
    ; recommended coding standards in PHP. For performance reasons, this is the
    ; recommend error reporting setting. Your production server shouldn't be wasting
    ; resources complaining about best practices and coding standards. That's what
    ; development servers and development settings are for.
    ; Note: The php.ini-development file has this setting as E_ALL. This
    ; means it pretty much reports everything which is exactly what you want during
    ; development and early testing.
    ;
    ; Error Level Constants:
    ; E_ALL             - All errors and warnings (includes E_STRICT as of PHP 5.4.0)
    ; E_ERROR           - fatal run-time errors
    ; E_RECOVERABLE_ERROR  - almost fatal run-time errors
    ; E_WARNING         - run-time warnings (non-fatal errors)
    ; E_PARSE           - compile-time parse errors
    ; E_NOTICE          - run-time notices (these are warnings which often result
    ;                     from a bug in your code, but it's possible that it was
    ;                     intentional (e.g., using an uninitialized variable and
    ;                     relying on the fact it is automatically initialized to an
    ;                     empty string)
    ; E_STRICT          - run-time notices, enable to have PHP suggest changes
    ;                     to your code which will ensure the best interoperability
    ;                     and forward compatibility of your code
    ; E_CORE_ERROR      - fatal errors that occur during PHP's initial startup
    ; E_CORE_WARNING    - warnings (non-fatal errors) that occur during PHP's
    ;                     initial startup
    ; E_COMPILE_ERROR   - fatal compile-time errors
    ; E_COMPILE_WARNING - compile-time warnings (non-fatal errors)
    ; E_USER_ERROR      - user-generated error message
    ; E_USER_WARNING    - user-generated warning message
    ; E_USER_NOTICE     - user-generated notice message
    ; E_DEPRECATED      - warn about code that will not work in future versions
    ;                     of PHP
    ; E_USER_DEPRECATED - user-generated deprecation warnings
    ;
    ; Common Values:
    ;   E_ALL (Show all errors, warnings and notices including coding standards.)
    ;   E_ALL & ~E_NOTICE  (Show all errors, except for notices)
    ;   E_ALL & ~E_NOTICE & ~E_STRICT  (Show all errors, except for notices and coding standards warnings.)
    ;   E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR  (Show only errors)
    ; Default Value: E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED
    ; Development Value: E_ALL
    ; Production Value: E_ALL & ~E_DEPRECATED & ~E_STRICT
    ; http://php.net/error-reporting
    error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT
    
    ; This directive controls whether or not and where PHP will output errors,
    ; notices and warnings too. Error output is very useful during development, but
    ; it could be very dangerous in production environments. Depending on the code
    ; which is triggering the error, sensitive information could potentially leak
    ; out of your application such as database usernames and passwords or worse.
    ; For production environments, we recommend logging errors rather than
    ; sending them to STDOUT.
    ; Possible Values:
    ;   Off = Do not display any errors
    ;   stderr = Display errors to STDERR (affects only CGI/CLI binaries!)
    ;   On or stdout = Display errors to STDOUT
    ; Default Value: On
    ; Development Value: On
    ; Production Value: Off
    ; http://php.net/display-errors
    display_errors = Off
    
    ; The display of errors which occur during PHP's startup sequence are handled
    ; separately from display_errors. PHP's default behavior is to suppress those
    ; errors from clients. Turning the display of startup errors on can be useful in
    ; debugging configuration problems. We strongly recommend you
    ; set this to 'off' for production servers.
    ; Default Value: Off
    ; Development Value: On
    ; Production Value: Off
    ; http://php.net/display-startup-errors
    display_startup_errors = Off
    
    ; Besides displaying errors, PHP can also log errors to locations such as a
    ; server-specific log, STDERR, or a location specified by the error_log
    ; directive found below. While errors should not be displayed on productions
    ; servers they should still be monitored and logging is a great way to do that.
    ; Default Value: Off
    ; Development Value: On
    ; Production Value: On
    ; http://php.net/log-errors
    log_errors = On
    
    ; Set maximum length of log_errors. In error_log information about the source is
    ; added. The default is 1024 and 0 allows to not apply any maximum length at all.
    ; http://php.net/log-errors-max-len
    log_errors_max_len = 1024
    
    ; Do not log repeated messages. Repeated errors must occur in same file on same
    ; line unless ignore_repeated_source is set true.
    ; http://php.net/ignore-repeated-errors
    ignore_repeated_errors = Off
    
    ; Ignore source of message when ignoring repeated messages. When this setting
    ; is On you will not log errors with repeated messages from different files or
    ; source lines.
    ; http://php.net/ignore-repeated-source
    ignore_repeated_source = Off
    
    ; If this parameter is set to Off, then memory leaks will not be shown (on
    ; stdout or in the log). This has only effect in a debug compile, and if
    ; error reporting includes E_WARNING in the allowed list
    ; http://php.net/report-memleaks
    report_memleaks = On
    
    ; This setting is on by default.
    ;report_zend_debug = 0
    
    ; Store the last error/warning message in $php_errormsg (boolean). Setting this value
    ; to On can assist in debugging and is appropriate for development servers. It should
    ; however be disabled on production servers.
    ; Default Value: Off
    ; Development Value: On
    ; Production Value: Off
    ; http://php.net/track-errors
    track_errors = Off
    
    ; Turn off normal error reporting and emit XML-RPC error XML
    ; http://php.net/xmlrpc-errors
    ;xmlrpc_errors = 0
    
    ; An XML-RPC faultCode
    ;xmlrpc_error_number = 0
    
    ; When PHP displays or logs an error, it has the capability of formatting the
    ; error message as HTML for easier reading. This directive controls whether
    ; the error message is formatted as HTML or not.
    ; Note: This directive is hardcoded to Off for the CLI SAPI
    ; Default Value: On
    ; Development Value: On
    ; Production value: On
    ; http://php.net/html-errors
    html_errors = On
    
    ; If html_errors is set to On *and* docref_root is not empty, then PHP
    ; produces clickable error messages that direct to a page describing the error
    ; or function causing the error in detail.
    ; You can download a copy of the PHP manual from http://php.net/docs
    ; and change docref_root to the base URL of your local copy including the
    ; leading '/'. You must also specify the file extension being used including
    ; the dot. PHP's default behavior is to leave these settings empty, in which
    ; case no links to documentation are generated.
    ; Note: Never use this feature for production boxes.
    ; http://php.net/docref-root
    ; Examples
    ;docref_root = "/phpmanual/"
    
    ; http://php.net/docref-ext
    ;docref_ext = .html
    
    ; String to output before an error message. PHP's default behavior is to leave
    ; this setting blank.
    ; http://php.net/error-prepend-string
    ; Example:
    ;error_prepend_string = "<span style='color: #ff0000'>"
    
    ; String to output after an error message. PHP's default behavior is to leave
    ; this setting blank.
    ; http://php.net/error-append-string
    ; Example:
    ;error_append_string = "</span>"
    
    ; Log errors to specified file. PHP's default behavior is to leave this value
    ; empty.
    ; http://php.net/error-log
    ; Example:
    ;error_log = php_errors.log
    ; Log errors to syslog (Event Log on Windows).
    ;error_log = syslog
    
    ;windows.show_crt_warning
    ; Default value: 0
    ; Development value: 0
    ; Production value: 0
    
    ;;;;;;;;;;;;;;;;;
    ; Data Handling ;
    ;;;;;;;;;;;;;;;;;
    
    ; The separator used in PHP generated URLs to separate arguments.
    ; PHP's default setting is "&".
    ; http://php.net/arg-separator.output
    ; Example:
    ;arg_separator.output = "&amp;"
    
    ; List of separator(s) used by PHP to parse input URLs into variables.
    ; PHP's default setting is "&".
    ; NOTE: Every character in this directive is considered as separator!
    ; http://php.net/arg-separator.input
    ; Example:
    ;arg_separator.input = ";&"
    
    ; This directive determines which super global arrays are registered when PHP
    ; starts up. G,P,C,E & S are abbreviations for the following respective super
    ; globals: GET, POST, COOKIE, ENV and SERVER. There is a performance penalty
    ; paid for the registration of these arrays and because ENV is not as commonly
    ; used as the others, ENV is not recommended on productions servers. You
    ; can still get access to the environment variables through getenv() should you
    ; need to.
    ; Default Value: "EGPCS"
    ; Development Value: "GPCS"
    ; Production Value: "GPCS";
    ; http://php.net/variables-order
    variables_order = "GPCS"
    
    ; This directive determines which super global data (G,P & C) should be
    ; registered into the super global array REQUEST. If so, it also determines
    ; the order in which that data is registered. The values for this directive
    ; are specified in the same manner as the variables_order directive,
    ; EXCEPT one. Leaving this value empty will cause PHP to use the value set
    ; in the variables_order directive. It does not mean it will leave the super
    ; globals array REQUEST empty.
    ; Default Value: None
    ; Development Value: "GP"
    ; Production Value: "GP"
    ; http://php.net/request-order
    request_order = "GP"
    
    ; This directive determines whether PHP registers $argv & $argc each time it
    ; runs. $argv contains an array of all the arguments passed to PHP when a script
    ; is invoked. $argc contains an integer representing the number of arguments
    ; that were passed when the script was invoked. These arrays are extremely
    ; useful when running scripts from the command line. When this directive is
    ; enabled, registering these variables consumes CPU cycles and memory each time
    ; a script is executed. For performance reasons, this feature should be disabled
    ; on production servers.
    ; Note: This directive is hardcoded to On for the CLI SAPI
    ; Default Value: On
    ; Development Value: Off
    ; Production Value: Off
    ; http://php.net/register-argc-argv
    register_argc_argv = Off
    
    ; When enabled, the ENV, REQUEST and SERVER variables are created when they're
    ; first used (Just In Time) instead of when the script starts. If these
    ; variables are not used within a script, having this directive on will result
    ; in a performance gain. The PHP directive register_argc_argv must be disabled
    ; for this directive to have any affect.
    ; http://php.net/auto-globals-jit
    auto_globals_jit = On
    
    ; Whether PHP will read the POST data.
    ; This option is enabled by default.
    ; Most likely, you won't want to disable this option globally. It causes $_POST
    ; and $_FILES to always be empty; the only way you will be able to read the
    ; POST data will be through the php://input stream wrapper. This can be useful
    ; to proxy requests or to process the POST data in a memory efficient fashion.
    ; http://php.net/enable-post-data-reading
    ;enable_post_data_reading = Off
    
    ; Maximum size of POST data that PHP will accept.
    ; Its value may be 0 to disable the limit. It is ignored if POST data reading
    ; is disabled through enable_post_data_reading.
    ; http://php.net/post-max-size
    post_max_size = 100M
    
    ; Automatically add files before PHP document.
    ; http://php.net/auto-prepend-file
    auto_prepend_file =
    
    ; Automatically add files after PHP document.
    ; http://php.net/auto-append-file
    auto_append_file =
    
    ; By default, PHP will output a media type using the Content-Type header. To
    ; disable this, simply set it to be empty.
    ;
    ; PHP's built-in default media type is set to text/html.
    ; http://php.net/default-mimetype
    default_mimetype = "text/html"
    
    ; PHP's default character set is set to UTF-8.
    ; http://php.net/default-charset
    default_charset = "UTF-8"
    
    ; PHP internal character encoding is set to empty.
    ; If empty, default_charset is used.
    ; http://php.net/internal-encoding
    ;internal_encoding =
    
    ; PHP input character encoding is set to empty.
    ; If empty, default_charset is used.
    ; http://php.net/input-encoding
    ;input_encoding =
    
    ; PHP output character encoding is set to empty.
    ; If empty, default_charset is used.
    ; See also output_buffer.
    ; http://php.net/output-encoding
    ;output_encoding =
    
    ; Always populate the $HTTP_RAW_POST_DATA variable. PHP's default behavior is
    ; to disable this feature and it will be removed in a future version.
    ; If post reading is disabled through enable_post_data_reading,
    ; $HTTP_RAW_POST_DATA is *NOT* populated.
    ; http://php.net/always-populate-raw-post-data
    ;always_populate_raw_post_data = -1
    
    ;;;;;;;;;;;;;;;;;;;;;;;;;
    ; Paths and Directories ;
    ;;;;;;;;;;;;;;;;;;;;;;;;;
    
    ; UNIX: "/path1:/path2"
    ;include_path = ".:/php/includes"
    ;
    ; Windows: "path1;path2"
    ;include_path = ".;c:phpincludes"
    ;
    ; PHP's default setting for include_path is ".;/path/to/php/pear"
    ; http://php.net/include-path
    
    ; The root of the PHP pages, used only if nonempty.
    ; if PHP was not compiled with FORCE_REDIRECT, you SHOULD set doc_root
    ; if you are running php as a CGI under any web server (other than IIS)
    ; see documentation for security issues.  The alternate is to use the
    ; cgi.force_redirect configuration below
    ; http://php.net/doc-root
    doc_root =
    
    ; The directory under which PHP opens the script using /~username used only
    ; if nonempty.
    ; http://php.net/user-dir
    user_dir =
    
    ; Directory in which the loadable extensions (modules) reside.
    ; http://php.net/extension-dir
    ; extension_dir = "./"
    ; On windows:
    ; extension_dir = "ext"
    
    ; Directory where the temporary files should be placed.
    ; Defaults to the system default (see sys_get_temp_dir)
    ; sys_temp_dir = "/tmp"
    
    ; Whether or not to enable the dl() function.  The dl() function does NOT work
    ; properly in multithreaded servers, such as IIS or Zeus, and is automatically
    ; disabled on them.
    ; http://php.net/enable-dl
    enable_dl = Off
    
    ; cgi.force_redirect is necessary to provide security running PHP as a CGI under
    ; most web servers.  Left undefined, PHP turns this on by default.  You can
    ; turn it off here AT YOUR OWN RISK
    ; **You CAN safely turn this off for IIS, in fact, you MUST.**
    ; http://php.net/cgi.force-redirect
    ;cgi.force_redirect = 1
    
    ; if cgi.nph is enabled it will force cgi to always sent Status: 200 with
    ; every request. PHP's default behavior is to disable this feature.
    ;cgi.nph = 1
    
    ; if cgi.force_redirect is turned on, and you are not running under Apache or Netscape
    ; (iPlanet) web servers, you MAY need to set an environment variable name that PHP
    ; will look for to know it is OK to continue execution.  Setting this variable MAY
    ; cause security issues, KNOW WHAT YOU ARE DOING FIRST.
    ; http://php.net/cgi.redirect-status-env
    ;cgi.redirect_status_env =
    
    ; cgi.fix_pathinfo provides *real* PATH_INFO/PATH_TRANSLATED support for CGI.  PHP's
    ; previous behaviour was to set PATH_TRANSLATED to SCRIPT_FILENAME, and to not grok
    ; what PATH_INFO is.  For more information on PATH_INFO, see the cgi specs.  Setting
    ; this to 1 will cause PHP CGI to fix its paths to conform to the spec.  A setting
    ; of zero causes PHP to behave as before.  Default is 1.  You should fix your scripts
    ; to use SCRIPT_FILENAME rather than PATH_TRANSLATED.
    ; http://php.net/cgi.fix-pathinfo
    ;cgi.fix_pathinfo=1
    
    ; if cgi.discard_path is enabled, the PHP CGI binary can safely be placed outside
    ; of the web tree and people will not be able to circumvent .htaccess security.
    ; http://php.net/cgi.dicard-path
    ;cgi.discard_path=1
    
    ; FastCGI under IIS (on WINNT based OS) supports the ability to impersonate
    ; security tokens of the calling client.  This allows IIS to define the
    ; security context that the request runs under.  mod_fastcgi under Apache
    ; does not currently support this feature (03/17/2002)
    ; Set to 1 if running under IIS.  Default is zero.
    ; http://php.net/fastcgi.impersonate
    ;fastcgi.impersonate = 1
    
    ; Disable logging through FastCGI connection. PHP's default behavior is to enable
    ; this feature.
    ;fastcgi.logging = 0
    
    ; cgi.rfc2616_headers configuration option tells PHP what type of headers to
    ; use when sending HTTP response code. If set to 0, PHP sends Status: header that
    ; is supported by Apache. When this option is set to 1, PHP will send
    ; RFC2616 compliant header.
    ; Default is zero.
    ; http://php.net/cgi.rfc2616-headers
    ;cgi.rfc2616_headers = 0
    
    ; cgi.check_shebang_line controls whether CGI PHP checks for line starting with #!
    ; (shebang) at the top of the running script. This line might be needed if the
    ; script support running both as stand-alone script and via PHP CGI<. PHP in CGI
    ; mode skips this line and ignores its content if this directive is turned on.
    ; http://php.net/cgi.check-shebang-line
    ;cgi.check_shebang_line=1
    
    ;;;;;;;;;;;;;;;;
    ; File Uploads ;
    ;;;;;;;;;;;;;;;;
    
    ; Whether to allow HTTP file uploads.
    ; http://php.net/file-uploads
    file_uploads = On
    
    ; Temporary directory for HTTP uploaded files (will use system default if not
    ; specified).
    ; http://php.net/upload-tmp-dir
    ;upload_tmp_dir =
    
    ; Maximum allowed size for uploaded files.
    ; http://php.net/upload-max-filesize
    upload_max_filesize = 100M
    
    ; Maximum number of files that can be uploaded via a single request
    max_file_uploads = 20
    
    ;;;;;;;;;;;;;;;;;;
    ; Fopen wrappers ;
    ;;;;;;;;;;;;;;;;;;
    
    ; Whether to allow the treatment of URLs (like http:// or ftp://) as files.
    ; http://php.net/allow-url-fopen
    allow_url_fopen = On
    
    ; Whether to allow include/require to open URLs (like http:// or ftp://) as files.
    ; http://php.net/allow-url-include
    allow_url_include = Off
    
    ; Define the anonymous ftp password (your email address). PHP's default setting
    ; for this is empty.
    ; http://php.net/from
    ;from="john@doe.com"
    
    ; Define the User-Agent string. PHP's default setting for this is empty.
    ; http://php.net/user-agent
    ;user_agent="PHP"
    
    ; Default timeout for socket based streams (seconds)
    ; http://php.net/default-socket-timeout
    default_socket_timeout = 60
    
    ; If your scripts have to deal with files from Macintosh systems,
    ; or you are running on a Mac and need to deal with files from
    ; unix or win32 systems, setting this flag will cause PHP to
    ; automatically detect the EOL character in those files so that
    ; fgets() and file() will work regardless of the source of the file.
    ; http://php.net/auto-detect-line-endings
    ;auto_detect_line_endings = Off
    
    ;;;;;;;;;;;;;;;;;;;;;;
    ; Dynamic Extensions ;
    ;;;;;;;;;;;;;;;;;;;;;;
    
    ; If you wish to have an extension loaded automatically, use the following
    ; syntax:
    ;
    ;   extension=modulename.extension
    ;
    ; For example, on Windows:
    ;
    ;   extension=msql.dll
    ;
    ; ... or under UNIX:
    ;
    ;   extension=msql.so
    ;
    ; ... or with a path:
    ;
    ;   extension=/path/to/extension/msql.so
    ;
    ; If you only provide the name of the extension, PHP will look for it in its
    ; default extension directory.
    ;
    ; Windows Extensions
    ; Note that ODBC support is built in, so no dll is needed for it.
    ; Note that many DLL files are located in the extensions/ (PHP 4) ext/ (PHP 5)
    ; extension folders as well as the separate PECL DLL download (PHP 5).
    ; Be sure to appropriately set the extension_dir directive.
    ;
    ;extension=php_bz2.dll
    ;extension=php_curl.dll
    ;extension=php_fileinfo.dll
    ;extension=php_gd2.dll
    ;extension=php_gettext.dll
    ;extension=php_gmp.dll
    ;extension=php_intl.dll
    ;extension=php_imap.dll
    ;extension=php_interbase.dll
    ;extension=php_ldap.dll
    ;extension=php_mbstring.dll
    ;extension=php_exif.dll      ; Must be after mbstring as it depends on it
    ;extension=php_mysql.dll
    ;extension=php_mysqli.dll
    ;extension=php_oci8_12c.dll  ; Use with Oracle Database 12c Instant Client
    ;extension=php_openssl.dll
    ;extension=php_pdo_firebird.dll
    ;extension=php_pdo_mysql.dll
    ;extension=php_pdo_oci.dll
    ;extension=php_pdo_odbc.dll
    ;extension=php_pdo_pgsql.dll
    ;extension=php_pdo_sqlite.dll
    ;extension=php_pgsql.dll
    ;extension=php_shmop.dll
    
    ; The MIBS data available in the PHP distribution must be installed. 
    ; See http://www.php.net/manual/en/snmp.installation.php 
    ;extension=php_snmp.dll
    
    ;extension=php_soap.dll
    ;extension=php_sockets.dll
    ;extension=php_sqlite3.dll
    ;extension=php_sybase_ct.dll
    ;extension=php_tidy.dll
    ;extension=php_xmlrpc.dll
    ;extension=php_xsl.dll
    
    ;;;;;;;;;;;;;;;;;;;
    ; Module Settings ;
    ;;;;;;;;;;;;;;;;;;;
    
    [CLI Server]
    ; Whether the CLI web server uses ANSI color coding in its terminal output.
    cli_server.color = On
    
    [Date]
    ; Defines the default timezone used by the date functions
    ; http://php.net/date.timezone
    date.timezone = Asia/Shanghai
    
    ; http://php.net/date.default-latitude
    ;date.default_latitude = 31.7667
    
    ; http://php.net/date.default-longitude
    ;date.default_longitude = 35.2333
    
    ; http://php.net/date.sunrise-zenith
    ;date.sunrise_zenith = 90.583333
    
    ; http://php.net/date.sunset-zenith
    ;date.sunset_zenith = 90.583333
    
    [filter]
    ; http://php.net/filter.default
    ;filter.default = unsafe_raw
    
    ; http://php.net/filter.default-flags
    ;filter.default_flags =
    
    [iconv]
    ; Use of this INI entry is deprecated, use global input_encoding instead.
    ; If empty, default_charset or input_encoding or iconv.input_encoding is used.
    ; The precedence is: default_charset < intput_encoding < iconv.input_encoding
    ;iconv.input_encoding =
    
    ; Use of this INI entry is deprecated, use global internal_encoding instead.
    ; If empty, default_charset or internal_encoding or iconv.internal_encoding is used.
    ; The precedence is: default_charset < internal_encoding < iconv.internal_encoding
    ;iconv.internal_encoding =
    
    ; Use of this INI entry is deprecated, use global output_encoding instead.
    ; If empty, default_charset or output_encoding or iconv.output_encoding is used.
    ; The precedence is: default_charset < output_encoding < iconv.output_encoding
    ; To use an output encoding conversion, iconv's output handler must be set
    ; otherwise output encoding conversion cannot be performed.
    ;iconv.output_encoding =
    
    [intl]
    ;intl.default_locale =
    ; This directive allows you to produce PHP errors when some error
    ; happens within intl functions. The value is the level of the error produced.
    ; Default is 0, which does not produce any errors.
    ;intl.error_level = E_WARNING
    ;intl.use_exceptions = 0
    
    [sqlite3]
    ;sqlite3.extension_dir =
    
    [Pcre]
    ;PCRE library backtracking limit.
    ; http://php.net/pcre.backtrack-limit
    ;pcre.backtrack_limit=100000
    
    ;PCRE library recursion limit.
    ;Please note that if you set this value to a high number you may consume all
    ;the available process stack and eventually crash PHP (due to reaching the
    ;stack size limit imposed by the Operating System).
    ; http://php.net/pcre.recursion-limit
    ;pcre.recursion_limit=100000
    
    [Pdo]
    ; Whether to pool ODBC connections. Can be one of "strict", "relaxed" or "off"
    ; http://php.net/pdo-odbc.connection-pooling
    ;pdo_odbc.connection_pooling=strict
    
    ;pdo_odbc.db2_instance_name
    
    [Pdo_mysql]
    ; If mysqlnd is used: Number of cache slots for the internal result set cache
    ; http://php.net/pdo_mysql.cache_size
    pdo_mysql.cache_size = 2000
    
    ; Default socket name for local MySQL connects.  If empty, uses the built-in
    ; MySQL defaults.
    ; http://php.net/pdo_mysql.default-socket
    pdo_mysql.default_socket=
    
    [Phar]
    ; http://php.net/phar.readonly
    ;phar.readonly = On
    
    ; http://php.net/phar.require-hash
    ;phar.require_hash = On
    
    ;phar.cache_list =
    
    [mail function]
    ; For Win32 only.
    ; http://php.net/smtp
    SMTP = localhost
    ; http://php.net/smtp-port
    smtp_port = 25
    
    ; For Win32 only.
    ; http://php.net/sendmail-from
    ;sendmail_from = me@example.com
    
    ; For Unix only.  You may supply arguments as well (default: "sendmail -t -i").
    ; http://php.net/sendmail-path
    ;sendmail_path =
    
    ; Force the addition of the specified parameters to be passed as extra parameters
    ; to the sendmail binary. These parameters will always replace the value of
    ; the 5th parameter to mail().
    ;mail.force_extra_parameters =
    
    ; Add X-PHP-Originating-Script: that will include uid of the script followed by the filename
    mail.add_x_header = On
    
    ; The path to a log file that will log all mail() calls. Log entries include
    ; the full path of the script, line number, To address and headers.
    ;mail.log =
    ; Log mail to syslog (Event Log on Windows).
    ;mail.log = syslog
    
    [SQL]
    ; http://php.net/sql.safe-mode
    sql.safe_mode = Off
    
    [ODBC]
    ; http://php.net/odbc.default-db
    ;odbc.default_db    =  Not yet implemented
    
    ; http://php.net/odbc.default-user
    ;odbc.default_user  =  Not yet implemented
    
    ; http://php.net/odbc.default-pw
    ;odbc.default_pw    =  Not yet implemented
    
    ; Controls the ODBC cursor model.
    ; Default: SQL_CURSOR_STATIC (default).
    ;odbc.default_cursortype
    
    ; Allow or prevent persistent links.
    ; http://php.net/odbc.allow-persistent
    odbc.allow_persistent = On
    
    ; Check that a connection is still valid before reuse.
    ; http://php.net/odbc.check-persistent
    odbc.check_persistent = On
    
    ; Maximum number of persistent links.  -1 means no limit.
    ; http://php.net/odbc.max-persistent
    odbc.max_persistent = -1
    
    ; Maximum number of links (persistent + non-persistent).  -1 means no limit.
    ; http://php.net/odbc.max-links
    odbc.max_links = -1
    
    ; Handling of LONG fields.  Returns number of bytes to variables.  0 means
    ; passthru.
    ; http://php.net/odbc.defaultlrl
    odbc.defaultlrl = 4096
    
    ; Handling of binary data.  0 means passthru, 1 return as is, 2 convert to char.
    ; See the documentation on odbc_binmode and odbc_longreadlen for an explanation
    ; of odbc.defaultlrl and odbc.defaultbinmode
    ; http://php.net/odbc.defaultbinmode
    odbc.defaultbinmode = 1
    
    ;birdstep.max_links = -1
    
    [Interbase]
    ; Allow or prevent persistent links.
    ibase.allow_persistent = 1
    
    ; Maximum number of persistent links.  -1 means no limit.
    ibase.max_persistent = -1
    
    ; Maximum number of links (persistent + non-persistent).  -1 means no limit.
    ibase.max_links = -1
    
    ; Default database name for ibase_connect().
    ;ibase.default_db =
    
    ; Default username for ibase_connect().
    ;ibase.default_user =
    
    ; Default password for ibase_connect().
    ;ibase.default_password =
    
    ; Default charset for ibase_connect().
    ;ibase.default_charset =
    
    ; Default timestamp format.
    ibase.timestampformat = "%Y-%m-%d %H:%M:%S"
    
    ; Default date format.
    ibase.dateformat = "%Y-%m-%d"
    
    ; Default time format.
    ibase.timeformat = "%H:%M:%S"
    
    [MySQL]
    ; Allow accessing, from PHP's perspective, local files with LOAD DATA statements
    ; http://php.net/mysql.allow_local_infile
    mysql.allow_local_infile = On
    
    ; Allow or prevent persistent links.
    ; http://php.net/mysql.allow-persistent
    mysql.allow_persistent = On
    
    ; If mysqlnd is used: Number of cache slots for the internal result set cache
    ; http://php.net/mysql.cache_size
    mysql.cache_size = 2000
    
    ; Maximum number of persistent links.  -1 means no limit.
    ; http://php.net/mysql.max-persistent
    mysql.max_persistent = -1
    
    ; Maximum number of links (persistent + non-persistent).  -1 means no limit.
    ; http://php.net/mysql.max-links
    mysql.max_links = -1
    
    ; Default port number for mysql_connect().  If unset, mysql_connect() will use
    ; the $MYSQL_TCP_PORT or the mysql-tcp entry in /etc/services or the
    ; compile-time value defined MYSQL_PORT (in that order).  Win32 will only look
    ; at MYSQL_PORT.
    ; http://php.net/mysql.default-port
    mysql.default_port =
    
    ; Default socket name for local MySQL connects.  If empty, uses the built-in
    ; MySQL defaults.
    ; http://php.net/mysql.default-socket
    mysql.default_socket =
    
    ; Default host for mysql_connect() (doesn't apply in safe mode).
    ; http://php.net/mysql.default-host
    mysql.default_host =
    
    ; Default user for mysql_connect() (doesn't apply in safe mode).
    ; http://php.net/mysql.default-user
    mysql.default_user =
    
    ; Default password for mysql_connect() (doesn't apply in safe mode).
    ; Note that this is generally a *bad* idea to store passwords in this file.
    ; *Any* user with PHP access can run 'echo get_cfg_var("mysql.default_password")
    ; and reveal this password!  And of course, any users with read access to this
    ; file will be able to reveal the password as well.
    ; http://php.net/mysql.default-password
    mysql.default_password =
    
    ; Maximum time (in seconds) for connect timeout. -1 means no limit
    ; http://php.net/mysql.connect-timeout
    mysql.connect_timeout = 60
    
    ; Trace mode. When trace_mode is active (=On), warnings for table/index scans and
    ; SQL-Errors will be displayed.
    ; http://php.net/mysql.trace-mode
    mysql.trace_mode = Off
    
    [MySQLi]
    
    ; Maximum number of persistent links.  -1 means no limit.
    ; http://php.net/mysqli.max-persistent
    mysqli.max_persistent = -1
    
    ; Allow accessing, from PHP's perspective, local files with LOAD DATA statements
    ; http://php.net/mysqli.allow_local_infile
    ;mysqli.allow_local_infile = On
    
    ; Allow or prevent persistent links.
    ; http://php.net/mysqli.allow-persistent
    mysqli.allow_persistent = On
    
    ; Maximum number of links.  -1 means no limit.
    ; http://php.net/mysqli.max-links
    mysqli.max_links = -1
    
    ; If mysqlnd is used: Number of cache slots for the internal result set cache
    ; http://php.net/mysqli.cache_size
    mysqli.cache_size = 2000
    
    ; Default port number for mysqli_connect().  If unset, mysqli_connect() will use
    ; the $MYSQL_TCP_PORT or the mysql-tcp entry in /etc/services or the
    ; compile-time value defined MYSQL_PORT (in that order).  Win32 will only look
    ; at MYSQL_PORT.
    ; http://php.net/mysqli.default-port
    mysqli.default_port = 3306
    
    ; Default socket name for local MySQL connects.  If empty, uses the built-in
    ; MySQL defaults.
    ; http://php.net/mysqli.default-socket
    mysqli.default_socket =
    
    ; Default host for mysql_connect() (doesn't apply in safe mode).
    ; http://php.net/mysqli.default-host
    mysqli.default_host =
    
    ; Default user for mysql_connect() (doesn't apply in safe mode).
    ; http://php.net/mysqli.default-user
    mysqli.default_user =
    
    ; Default password for mysqli_connect() (doesn't apply in safe mode).
    ; Note that this is generally a *bad* idea to store passwords in this file.
    ; *Any* user with PHP access can run 'echo get_cfg_var("mysqli.default_pw")
    ; and reveal this password!  And of course, any users with read access to this
    ; file will be able to reveal the password as well.
    ; http://php.net/mysqli.default-pw
    mysqli.default_pw =
    
    ; Allow or prevent reconnect
    mysqli.reconnect = Off
    
    [mysqlnd]
    ; Enable / Disable collection of general statistics by mysqlnd which can be
    ; used to tune and monitor MySQL operations.
    ; http://php.net/mysqlnd.collect_statistics
    mysqlnd.collect_statistics = On
    
    ; Enable / Disable collection of memory usage statistics by mysqlnd which can be
    ; used to tune and monitor MySQL operations.
    ; http://php.net/mysqlnd.collect_memory_statistics
    mysqlnd.collect_memory_statistics = Off
    
    ; Records communication from all extensions using mysqlnd to the specified log
    ; file.
    ; http://php.net/mysqlnd.debug
    ;mysqlnd.debug =
    
    ; Defines which queries will be logged.
    ; http://php.net/mysqlnd.log_mask
    ;mysqlnd.log_mask = 0
    
    ; Default size of the mysqlnd memory pool, which is used by result sets.
    ; http://php.net/mysqlnd.mempool_default_size
    ;mysqlnd.mempool_default_size = 16000
    
    ; Size of a pre-allocated buffer used when sending commands to MySQL in bytes.
    ; http://php.net/mysqlnd.net_cmd_buffer_size
    ;mysqlnd.net_cmd_buffer_size = 2048
    
    ; Size of a pre-allocated buffer used for reading data sent by the server in
    ; bytes.
    ; http://php.net/mysqlnd.net_read_buffer_size
    ;mysqlnd.net_read_buffer_size = 32768
    
    ; Timeout for network requests in seconds.
    ; http://php.net/mysqlnd.net_read_timeout
    ;mysqlnd.net_read_timeout = 31536000
    
    ; SHA-256 Authentication Plugin related. File with the MySQL server public RSA
    ; key.
    ; http://php.net/mysqlnd.sha256_server_public_key
    ;mysqlnd.sha256_server_public_key =
    
    [OCI8]
    
    ; Connection: Enables privileged connections using external
    ; credentials (OCI_SYSOPER, OCI_SYSDBA)
    ; http://php.net/oci8.privileged-connect
    ;oci8.privileged_connect = Off
    
    ; Connection: The maximum number of persistent OCI8 connections per
    ; process. Using -1 means no limit.
    ; http://php.net/oci8.max-persistent
    ;oci8.max_persistent = -1
    
    ; Connection: The maximum number of seconds a process is allowed to
    ; maintain an idle persistent connection. Using -1 means idle
    ; persistent connections will be maintained forever.
    ; http://php.net/oci8.persistent-timeout
    ;oci8.persistent_timeout = -1
    
    ; Connection: The number of seconds that must pass before issuing a
    ; ping during oci_pconnect() to check the connection validity. When
    ; set to 0, each oci_pconnect() will cause a ping. Using -1 disables
    ; pings completely.
    ; http://php.net/oci8.ping-interval
    ;oci8.ping_interval = 60
    
    ; Connection: Set this to a user chosen connection class to be used
    ; for all pooled server requests with Oracle 11g Database Resident
    ; Connection Pooling (DRCP).  To use DRCP, this value should be set to
    ; the same string for all web servers running the same application,
    ; the database pool must be configured, and the connection string must
    ; specify to use a pooled server.
    ;oci8.connection_class =
    
    ; High Availability: Using On lets PHP receive Fast Application
    ; Notification (FAN) events generated when a database node fails. The
    ; database must also be configured to post FAN events.
    ;oci8.events = Off
    
    ; Tuning: This option enables statement caching, and specifies how
    ; many statements to cache. Using 0 disables statement caching.
    ; http://php.net/oci8.statement-cache-size
    ;oci8.statement_cache_size = 20
    
    ; Tuning: Enables statement prefetching and sets the default number of
    ; rows that will be fetched automatically after statement execution.
    ; http://php.net/oci8.default-prefetch
    ;oci8.default_prefetch = 100
    
    ; Compatibility. Using On means oci_close() will not close
    ; oci_connect() and oci_new_connect() connections.
    ; http://php.net/oci8.old-oci-close-semantics
    ;oci8.old_oci_close_semantics = Off
    
    [PostgreSQL]
    ; Allow or prevent persistent links.
    ; http://php.net/pgsql.allow-persistent
    pgsql.allow_persistent = On
    
    ; Detect broken persistent links always with pg_pconnect().
    ; Auto reset feature requires a little overheads.
    ; http://php.net/pgsql.auto-reset-persistent
    pgsql.auto_reset_persistent = Off
    
    ; Maximum number of persistent links.  -1 means no limit.
    ; http://php.net/pgsql.max-persistent
    pgsql.max_persistent = -1
    
    ; Maximum number of links (persistent+non persistent).  -1 means no limit.
    ; http://php.net/pgsql.max-links
    pgsql.max_links = -1
    
    ; Ignore PostgreSQL backends Notice message or not.
    ; Notice message logging require a little overheads.
    ; http://php.net/pgsql.ignore-notice
    pgsql.ignore_notice = 0
    
    ; Log PostgreSQL backends Notice message or not.
    ; Unless pgsql.ignore_notice=0, module cannot log notice message.
    ; http://php.net/pgsql.log-notice
    pgsql.log_notice = 0
    
    [Sybase-CT]
    ; Allow or prevent persistent links.
    ; http://php.net/sybct.allow-persistent
    sybct.allow_persistent = On
    
    ; Maximum number of persistent links.  -1 means no limit.
    ; http://php.net/sybct.max-persistent
    sybct.max_persistent = -1
    
    ; Maximum number of links (persistent + non-persistent).  -1 means no limit.
    ; http://php.net/sybct.max-links
    sybct.max_links = -1
    
    ; Minimum server message severity to display.
    ; http://php.net/sybct.min-server-severity
    sybct.min_server_severity = 10
    
    ; Minimum client message severity to display.
    ; http://php.net/sybct.min-client-severity
    sybct.min_client_severity = 10
    
    ; Set per-context timeout
    ; http://php.net/sybct.timeout
    ;sybct.timeout=
    
    ;sybct.packet_size
    
    ; The maximum time in seconds to wait for a connection attempt to succeed before returning failure.
    ; Default: one minute
    ;sybct.login_timeout=
    
    ; The name of the host you claim to be connecting from, for display by sp_who.
    ; Default: none
    ;sybct.hostname=
    
    ; Allows you to define how often deadlocks are to be retried. -1 means "forever".
    ; Default: 0
    ;sybct.deadlock_retry_count=
    
    [bcmath]
    ; Number of decimal digits for all bcmath functions.
    ; http://php.net/bcmath.scale
    bcmath.scale = 0
    
    [browscap]
    ; http://php.net/browscap
    ;browscap = extra/browscap.ini
    
    [Session]
    ; Handler used to store/retrieve data.
    ; http://php.net/session.save-handler
    session.save_handler = files
    
    ; Argument passed to save_handler.  In the case of files, this is the path
    ; where data files are stored. Note: Windows users have to change this
    ; variable in order to use PHP's session functions.
    ;
    ; The path can be defined as:
    ;
    ;     session.save_path = "N;/path"
    ;
    ; where N is an integer.  Instead of storing all the session files in
    ; /path, what this will do is use subdirectories N-levels deep, and
    ; store the session data in those directories.  This is useful if
    ; your OS has problems with many files in one directory, and is
    ; a more efficient layout for servers that handle many sessions.
    ;
    ; NOTE 1: PHP will not create this directory structure automatically.
    ;         You can use the script in the ext/session dir for that purpose.
    ; NOTE 2: See the section on garbage collection below if you choose to
    ;         use subdirectories for session storage
    ;
    ; The file storage module creates files using mode 600 by default.
    ; You can change that by using
    ;
    ;     session.save_path = "N;MODE;/path"
    ;
    ; where MODE is the octal representation of the mode. Note that this
    ; does not overwrite the process's umask.
    ; http://php.net/session.save-path
    ;session.save_path = "/tmp"
    
    ; Whether to use strict session mode.
    ; Strict session mode does not accept uninitialized session ID and regenerate
    ; session ID if browser sends uninitialized session ID. Strict mode protects
    ; applications from session fixation via session adoption vulnerability. It is
    ; disabled by default for maximum compatibility, but enabling it is encouraged.
    ; https://wiki.php.net/rfc/strict_sessions
    session.use_strict_mode = 0
    
    ; Whether to use cookies.
    ; http://php.net/session.use-cookies
    session.use_cookies = 1
    
    ; http://php.net/session.cookie-secure
    ;session.cookie_secure =
    
    ; This option forces PHP to fetch and use a cookie for storing and maintaining
    ; the session id. We encourage this operation as it's very helpful in combating
    ; session hijacking when not specifying and managing your own session id. It is
    ; not the be-all and end-all of session hijacking defense, but it's a good start.
    ; http://php.net/session.use-only-cookies
    session.use_only_cookies = 1
    
    ; Name of the session (used as cookie name).
    ; http://php.net/session.name
    session.name = PHPSESSID
    
    ; Initialize session on request startup.
    ; http://php.net/session.auto-start
    session.auto_start = 0
    
    ; Lifetime in seconds of cookie or, if 0, until browser is restarted.
    ; http://php.net/session.cookie-lifetime
    session.cookie_lifetime = 0
    
    ; The path for which the cookie is valid.
    ; http://php.net/session.cookie-path
    session.cookie_path = /
    
    ; The domain for which the cookie is valid.
    ; http://php.net/session.cookie-domain
    session.cookie_domain =
    
    ; Whether or not to add the httpOnly flag to the cookie, which makes it inaccessible to browser scripting languages such as JavaScript.
    ; http://php.net/session.cookie-httponly
    session.cookie_httponly =
    
    ; Handler used to serialize data.  php is the standard serializer of PHP.
    ; http://php.net/session.serialize-handler
    session.serialize_handler = php
    
    ; Defines the probability that the 'garbage collection' process is started
    ; on every session initialization. The probability is calculated by using
    ; gc_probability/gc_divisor. Where session.gc_probability is the numerator
    ; and gc_divisor is the denominator in the equation. Setting this value to 1
    ; when the session.gc_divisor value is 100 will give you approximately a 1% chance
    ; the gc will run on any give request.
    ; Default Value: 1
    ; Development Value: 1
    ; Production Value: 1
    ; http://php.net/session.gc-probability
    session.gc_probability = 1
    
    ; Defines the probability that the 'garbage collection' process is started on every
    ; session initialization. The probability is calculated by using the following equation:
    ; gc_probability/gc_divisor. Where session.gc_probability is the numerator and
    ; session.gc_divisor is the denominator in the equation. Setting this value to 1
    ; when the session.gc_divisor value is 100 will give you approximately a 1% chance
    ; the gc will run on any give request. Increasing this value to 1000 will give you
    ; a 0.1% chance the gc will run on any give request. For high volume production servers,
    ; this is a more efficient approach.
    ; Default Value: 100
    ; Development Value: 1000
    ; Production Value: 1000
    ; http://php.net/session.gc-divisor
    session.gc_divisor = 1000
    
    ; After this number of seconds, stored data will be seen as 'garbage' and
    ; cleaned up by the garbage collection process.
    ; http://php.net/session.gc-maxlifetime
    session.gc_maxlifetime = 1440
    
    ; NOTE: If you are using the subdirectory option for storing session files
    ;       (see session.save_path above), then garbage collection does *not*
    ;       happen automatically.  You will need to do your own garbage
    ;       collection through a shell script, cron entry, or some other method.
    ;       For example, the following script would is the equivalent of
    ;       setting session.gc_maxlifetime to 1440 (1440 seconds = 24 minutes):
    ;          find /path/to/sessions -cmin +24 -type f | xargs rm
    
    ; Check HTTP Referer to invalidate externally stored URLs containing ids.
    ; HTTP_REFERER has to contain this substring for the session to be
    ; considered as valid.
    ; http://php.net/session.referer-check
    session.referer_check =
    
    ; How many bytes to read from the file.
    ; http://php.net/session.entropy-length
    ;session.entropy_length = 32
    
    ; Specified here to create the session id.
    ; http://php.net/session.entropy-file
    ; Defaults to /dev/urandom
    ; On systems that don't have /dev/urandom but do have /dev/arandom, this will default to /dev/arandom
    ; If neither are found at compile time, the default is no entropy file.
    ; On windows, setting the entropy_length setting will activate the
    ; Windows random source (using the CryptoAPI)
    ;session.entropy_file = /dev/urandom
    
    ; Set to {nocache,private,public,} to determine HTTP caching aspects
    ; or leave this empty to avoid sending anti-caching headers.
    ; http://php.net/session.cache-limiter
    session.cache_limiter = nocache
    
    ; Document expires after n minutes.
    ; http://php.net/session.cache-expire
    session.cache_expire = 180
    
    ; trans sid support is disabled by default.
    ; Use of trans sid may risk your users' security.
    ; Use this option with caution.
    ; - User may send URL contains active session ID
    ;   to other person via. email/irc/etc.
    ; - URL that contains active session ID may be stored
    ;   in publicly accessible computer.
    ; - User may access your site with the same session ID
    ;   always using URL stored in browser's history or bookmarks.
    ; http://php.net/session.use-trans-sid
    session.use_trans_sid = 0
    
    ; Select a hash function for use in generating session ids.
    ; Possible Values
    ;   0  (MD5 128 bits)
    ;   1  (SHA-1 160 bits)
    ; This option may also be set to the name of any hash function supported by
    ; the hash extension. A list of available hashes is returned by the hash_algos()
    ; function.
    ; http://php.net/session.hash-function
    session.hash_function = 0
    
    ; Define how many bits are stored in each character when converting
    ; the binary hash data to something readable.
    ; Possible values:
    ;   4  (4 bits: 0-9, a-f)
    ;   5  (5 bits: 0-9, a-v)
    ;   6  (6 bits: 0-9, a-z, A-Z, "-", ",")
    ; Default Value: 4
    ; Development Value: 5
    ; Production Value: 5
    ; http://php.net/session.hash-bits-per-character
    session.hash_bits_per_character = 5
    
    ; The URL rewriter will look for URLs in a defined set of HTML tags.
    ; form/fieldset are special; if you include them here, the rewriter will
    ; add a hidden <input> field with the info which is otherwise appended
    ; to URLs.  If you want XHTML conformity, remove the form entry.
    ; Note that all valid entries require a "=", even if no value follows.
    ; Default Value: "a=href,area=href,frame=src,form=,fieldset="
    ; Development Value: "a=href,area=href,frame=src,input=src,form=fakeentry"
    ; Production Value: "a=href,area=href,frame=src,input=src,form=fakeentry"
    ; http://php.net/url-rewriter.tags
    url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"
    
    ; Enable upload progress tracking in $_SESSION
    ; Default Value: On
    ; Development Value: On
    ; Production Value: On
    ; http://php.net/session.upload-progress.enabled
    ;session.upload_progress.enabled = On
    
    ; Cleanup the progress information as soon as all POST data has been read
    ; (i.e. upload completed).
    ; Default Value: On
    ; Development Value: On
    ; Production Value: On
    ; http://php.net/session.upload-progress.cleanup
    ;session.upload_progress.cleanup = On
    
    ; A prefix used for the upload progress key in $_SESSION
    ; Default Value: "upload_progress_"
    ; Development Value: "upload_progress_"
    ; Production Value: "upload_progress_"
    ; http://php.net/session.upload-progress.prefix
    ;session.upload_progress.prefix = "upload_progress_"
    
    ; The index name (concatenated with the prefix) in $_SESSION
    ; containing the upload progress information
    ; Default Value: "PHP_SESSION_UPLOAD_PROGRESS"
    ; Development Value: "PHP_SESSION_UPLOAD_PROGRESS"
    ; Production Value: "PHP_SESSION_UPLOAD_PROGRESS"
    ; http://php.net/session.upload-progress.name
    ;session.upload_progress.name = "PHP_SESSION_UPLOAD_PROGRESS"
    
    ; How frequently the upload progress should be updated.
    ; Given either in percentages (per-file), or in bytes
    ; Default Value: "1%"
    ; Development Value: "1%"
    ; Production Value: "1%"
    ; http://php.net/session.upload-progress.freq
    ;session.upload_progress.freq =  "1%"
    
    ; The minimum delay between updates, in seconds
    ; Default Value: 1
    ; Development Value: 1
    ; Production Value: 1
    ; http://php.net/session.upload-progress.min-freq
    ;session.upload_progress.min_freq = "1"
    
    [MSSQL]
    ; Allow or prevent persistent links.
    mssql.allow_persistent = On
    
    ; Maximum number of persistent links.  -1 means no limit.
    mssql.max_persistent = -1
    
    ; Maximum number of links (persistent+non persistent).  -1 means no limit.
    mssql.max_links = -1
    
    ; Minimum error severity to display.
    mssql.min_error_severity = 10
    
    ; Minimum message severity to display.
    mssql.min_message_severity = 10
    
    ; Compatibility mode with old versions of PHP 3.0.
    mssql.compatibility_mode = Off
    
    ; Connect timeout
    ;mssql.connect_timeout = 5
    
    ; Query timeout
    ;mssql.timeout = 60
    
    ; Valid range 0 - 2147483647.  Default = 4096.
    ;mssql.textlimit = 4096
    
    ; Valid range 0 - 2147483647.  Default = 4096.
    ;mssql.textsize = 4096
    
    ; Limits the number of records in each batch.  0 = all records in one batch.
    ;mssql.batchsize = 0
    
    ; Specify how datetime and datetim4 columns are returned
    ; On => Returns data converted to SQL server settings
    ; Off => Returns values as YYYY-MM-DD hh:mm:ss
    ;mssql.datetimeconvert = On
    
    ; Use NT authentication when connecting to the server
    mssql.secure_connection = Off
    
    ; Specify max number of processes. -1 = library default
    ; msdlib defaults to 25
    ; FreeTDS defaults to 4096
    ;mssql.max_procs = -1
    
    ; Specify client character set.
    ; If empty or not set the client charset from freetds.conf is used
    ; This is only used when compiled with FreeTDS
    ;mssql.charset = "ISO-8859-1"
    
    [Assertion]
    ; Assert(expr); active by default.
    ; http://php.net/assert.active
    ;assert.active = On
    
    ; Issue a PHP warning for each failed assertion.
    ; http://php.net/assert.warning
    ;assert.warning = On
    
    ; Don't bail out by default.
    ; http://php.net/assert.bail
    ;assert.bail = Off
    
    ; User-function to be called if an assertion fails.
    ; http://php.net/assert.callback
    ;assert.callback = 0
    
    ; Eval the expression with current error_reporting().  Set to true if you want
    ; error_reporting(0) around the eval().
    ; http://php.net/assert.quiet-eval
    ;assert.quiet_eval = 0
    
    [COM]
    ; path to a file containing GUIDs, IIDs or filenames of files with TypeLibs
    ; http://php.net/com.typelib-file
    ;com.typelib_file =
    
    ; allow Distributed-COM calls
    ; http://php.net/com.allow-dcom
    ;com.allow_dcom = true
    
    ; autoregister constants of a components typlib on com_load()
    ; http://php.net/com.autoregister-typelib
    ;com.autoregister_typelib = true
    
    ; register constants casesensitive
    ; http://php.net/com.autoregister-casesensitive
    ;com.autoregister_casesensitive = false
    
    ; show warnings on duplicate constant registrations
    ; http://php.net/com.autoregister-verbose
    ;com.autoregister_verbose = true
    
    ; The default character set code-page to use when passing strings to and from COM objects.
    ; Default: system ANSI code page
    ;com.code_page=
    
    [mbstring]
    ; language for internal character representation.
    ; This affects mb_send_mail() and mbstrig.detect_order.
    ; http://php.net/mbstring.language
    ;mbstring.language = Japanese
    
    ; Use of this INI entry is deprecated, use global internal_encoding instead.
    ; internal/script encoding.
    ; Some encoding cannot work as internal encoding. (e.g. SJIS, BIG5, ISO-2022-*)
    ; If empty, default_charset or internal_encoding or iconv.internal_encoding is used.
    ; The precedence is: default_charset < internal_encoding < iconv.internal_encoding
    ;mbstring.internal_encoding =
    
    ; Use of this INI entry is deprecated, use global input_encoding instead.
    ; http input encoding.
    ; mbstring.encoding_traslation = On is needed to use this setting.
    ; If empty, default_charset or input_encoding or mbstring.input is used.
    ; The precedence is: default_charset < intput_encoding < mbsting.http_input
    ; http://php.net/mbstring.http-input
    ;mbstring.http_input =
    
    ; Use of this INI entry is deprecated, use global output_encoding instead.
    ; http output encoding.
    ; mb_output_handler must be registered as output buffer to function.
    ; If empty, default_charset or output_encoding or mbstring.http_output is used.
    ; The precedence is: default_charset < output_encoding < mbstring.http_output
    ; To use an output encoding conversion, mbstring's output handler must be set
    ; otherwise output encoding conversion cannot be performed.
    ; http://php.net/mbstring.http-output
    ;mbstring.http_output =
    
    ; enable automatic encoding translation according to
    ; mbstring.internal_encoding setting. Input chars are
    ; converted to internal encoding by setting this to On.
    ; Note: Do _not_ use automatic encoding translation for
    ;       portable libs/applications.
    ; http://php.net/mbstring.encoding-translation
    ;mbstring.encoding_translation = Off
    
    ; automatic encoding detection order.
    ; "auto" detect order is changed according to mbstring.language
    ; http://php.net/mbstring.detect-order
    ;mbstring.detect_order = auto
    
    ; substitute_character used when character cannot be converted
    ; one from another
    ; http://php.net/mbstring.substitute-character
    ;mbstring.substitute_character = none
    
    ; overload(replace) single byte functions by mbstring functions.
    ; mail(), ereg(), etc are overloaded by mb_send_mail(), mb_ereg(),
    ; etc. Possible values are 0,1,2,4 or combination of them.
    ; For example, 7 for overload everything.
    ; 0: No overload
    ; 1: Overload mail() function
    ; 2: Overload str*() functions
    ; 4: Overload ereg*() functions
    ; http://php.net/mbstring.func-overload
    ;mbstring.func_overload = 0
    
    ; enable strict encoding detection.
    ; Default: Off
    ;mbstring.strict_detection = On
    
    ; This directive specifies the regex pattern of content types for which mb_output_handler()
    ; is activated.
    ; Default: mbstring.http_output_conv_mimetype=^(text/|application/xhtml+xml)
    ;mbstring.http_output_conv_mimetype=
    
    [gd]
    ; Tell the jpeg decode to ignore warnings and try to create
    ; a gd image. The warning will then be displayed as notices
    ; disabled by default
    ; http://php.net/gd.jpeg-ignore-warning
    ;gd.jpeg_ignore_warning = 0
    
    [exif]
    ; Exif UNICODE user comments are handled as UCS-2BE/UCS-2LE and JIS as JIS.
    ; With mbstring support this will automatically be converted into the encoding
    ; given by corresponding encode setting. When empty mbstring.internal_encoding
    ; is used. For the decode settings you can distinguish between motorola and
    ; intel byte order. A decode setting cannot be empty.
    ; http://php.net/exif.encode-unicode
    ;exif.encode_unicode = ISO-8859-15
    
    ; http://php.net/exif.decode-unicode-motorola
    ;exif.decode_unicode_motorola = UCS-2BE
    
    ; http://php.net/exif.decode-unicode-intel
    ;exif.decode_unicode_intel    = UCS-2LE
    
    ; http://php.net/exif.encode-jis
    ;exif.encode_jis =
    
    ; http://php.net/exif.decode-jis-motorola
    ;exif.decode_jis_motorola = JIS
    
    ; http://php.net/exif.decode-jis-intel
    ;exif.decode_jis_intel    = JIS
    
    [Tidy]
    ; The path to a default tidy configuration file to use when using tidy
    ; http://php.net/tidy.default-config
    ;tidy.default_config = /usr/local/lib/php/default.tcfg
    
    ; Should tidy clean and repair output automatically?
    ; WARNING: Do not use this option if you are generating non-html content
    ; such as dynamic images
    ; http://php.net/tidy.clean-output
    tidy.clean_output = Off
    
    [soap]
    ; Enables or disables WSDL caching feature.
    ; http://php.net/soap.wsdl-cache-enabled
    soap.wsdl_cache_enabled=1
    
    ; Sets the directory name where SOAP extension will put cache files.
    ; http://php.net/soap.wsdl-cache-dir
    soap.wsdl_cache_dir="/tmp"
    
    ; (time to live) Sets the number of second while cached file will be used
    ; instead of original one.
    ; http://php.net/soap.wsdl-cache-ttl
    soap.wsdl_cache_ttl=86400
    
    ; Sets the size of the cache limit. (Max. number of WSDL files to cache)
    soap.wsdl_cache_limit = 5
    
    [sysvshm]
    ; A default size of the shared memory segment
    ;sysvshm.init_mem = 10000
    
    [ldap]
    ; Sets the maximum number of open links or -1 for unlimited.
    ldap.max_links = -1
    
    [mcrypt]
    ; For more information about mcrypt settings see http://php.net/mcrypt-module-open
    
    ; Directory where to load mcrypt algorithms
    ; Default: Compiled in into libmcrypt (usually /usr/local/lib/libmcrypt)
    ;mcrypt.algorithms_dir=
    
    ; Directory where to load mcrypt modes
    ; Default: Compiled in into libmcrypt (usually /usr/local/lib/libmcrypt)
    ;mcrypt.modes_dir=
    
    [dba]
    ;dba.default_handler=
    
    [opcache]
    ; Determines if Zend OPCache is enabled
    opcache.enable=1
    
    ; Determines if Zend OPCache is enabled for the CLI version of PHP
    opcache.enable_cli=0
    
    ; The OPcache shared memory storage size.
    opcache.memory_consumption=128
    
    ; The amount of memory for interned strings in Mbytes.
    opcache.interned_strings_buffer=8
    
    ; The maximum number of keys (scripts) in the OPcache hash table.
    ; Only numbers between 200 and 100000 are allowed.
    opcache.max_accelerated_files=20000
    
    ; The maximum percentage of "wasted" memory until a restart is scheduled.
    ;opcache.max_wasted_percentage=5
    
    ; When this directive is enabled, the OPcache appends the current working
    ; directory to the script key, thus eliminating possible collisions between
    ; files with the same name (basename). Disabling the directive improves
    ; performance, but may break existing applications.
    opcache.use_cwd=1
    
    ; When disabled, you must reset the OPcache manually or restart the
    ; webserver for changes to the filesystem to take effect.
    opcache.validate_timestamps=1
    
    ; How often (in seconds) to check file timestamps for changes to the shared
    ; memory storage allocation. ("1" means validate once per second, but only
    ; once per request. "0" means always validate)
    opcache.revalidate_freq=0
    
    ; Enables or disables file search in include_path optimization
    ;opcache.revalidate_path=0
    
    ; If disabled, all PHPDoc comments are dropped from the code to reduce the
    ; size of the optimized code.
    ;opcache.save_comments=1
    
    ; If disabled, PHPDoc comments are not loaded from SHM, so "Doc Comments"
    ; may be always stored (save_comments=1), but not loaded by applications
    ; that don't need them anyway.
    ;opcache.load_comments=1
    
    ; If enabled, a fast shutdown sequence is used for the accelerated code
    ;opcache.fast_shutdown=0
    
    ; Allow file existence override (file_exists, etc.) performance feature.
    ;opcache.enable_file_override=0
    
    ; A bitmask, where each bit enables or disables the appropriate OPcache
    ; passes
    ;opcache.optimization_level=0xffffffff
    
    ;opcache.inherited_hack=1
    ;opcache.dups_fix=0
    
    ; The location of the OPcache blacklist file (wildcards allowed).
    ; Each OPcache blacklist file is a text file that holds the names of files
    ; that should not be accelerated. The file format is to add each filename
    ; to a new line. The filename may be a full path or just a file prefix
    ; (i.e., /var/www/x  blacklists all the files and directories in /var/www
    ; that start with 'x'). Line starting with a ; are ignored (comments).
    ;opcache.blacklist_filename=
    
    ; Allows exclusion of large files from being cached. By default all files
    ; are cached.
    ;opcache.max_file_size=0
    
    ; Check the cache checksum each N requests.
    ; The default value of "0" means that the checks are disabled.
    ;opcache.consistency_checks=0
    
    ; How long to wait (in seconds) for a scheduled restart to begin if the cache
    ; is not being accessed.
    ;opcache.force_restart_timeout=180
    
    ; OPcache error_log file name. Empty string assumes "stderr".
    ;opcache.error_log=
    
    ; All OPcache errors go to the Web server log.
    ; By default, only fatal errors (level 0) or errors (level 1) are logged.
    ; You can also enable warnings (level 2), info messages (level 3) or
    ; debug messages (level 4).
    ;opcache.log_verbosity_level=1
    
    ; Preferred Shared Memory back-end. Leave empty and let the system decide.
    ;opcache.preferred_memory_model=
    
    ; Protect the shared memory from unexpected writing during script execution.
    ; Useful for internal debugging only.
    ;opcache.protect_memory=0
    
    ; Validate cached file permissions.
    ; opcache.validate_permission=0
    
    ; Prevent name collisions in chroot'ed environment.
    ; opcache.validate_root=0
    
    [curl]
    ; A default value for the CURLOPT_CAINFO option. This is required to be an
    ; absolute path.
    ;curl.cainfo =
    
    [openssl]
    ; The location of a Certificate Authority (CA) file on the local filesystem
    ; to use when verifying the identity of SSL/TLS peers. Most users should
    ; not specify a value for this directive as PHP will attempt to use the
    ; OS-managed cert stores in its absence. If specified, this value may still
    ; be overridden on a per-stream basis via the "cafile" SSL stream context
    ; option.
    ;openssl.cafile=
    
    ; If openssl.cafile is not specified or if the CA file is not found, the
    ; directory pointed to by openssl.capath is searched for a suitable
    ; certificate. This value must be a correctly hashed certificate directory.
    ; Most users should not specify a value for this directive as PHP will
    ; attempt to use the OS-managed cert stores in its absence. If specified,
    ; this value may still be overridden on a per-stream basis via the "capath"
    ; SSL stream context option.
    ;openssl.capath=
    
    ; Local Variables:
    ; tab- 4
    ; End:
    php.ini
    ;;;;;;;;;;;;;;;;;;;;;
    ; FPM Configuration ;
    ;;;;;;;;;;;;;;;;;;;;;
    
    ; All relative paths in this configuration file are relative to PHP's install
    ; prefix (/usr/local/php). This prefix can be dynamically changed by using the
    ; '-p' argument from the command line.
    
    ; Include one or more files. If glob(3) exists, it is used to include a bunch of
    ; files from a glob(3) pattern. This directive can be used everywhere in the
    ; file.
    ; Relative path can also be used. They will be prefixed by:
    ;  - the global prefix if it's been set (-p argument)
    ;  - /usr/local/php otherwise
    ;include=etc/fpm.d/*.conf
    
    ;;;;;;;;;;;;;;;;;;
    ; Global Options ;
    ;;;;;;;;;;;;;;;;;;
    
    [global]
    ; Pid file
    ; Note: the default prefix is /usr/local/php/var
    ; Default Value: none
    pid = /var/run/php-fpm.pid
    
    ; Error log file
    ; If it's set to "syslog", log is sent to syslogd instead of being written
    ; in a local file.
    ; Note: the default prefix is /usr/local/php/var
    ; Default Value: log/php-fpm.log
    error_log = /usr/local/php/log/php-fpm.log
    
    ; syslog_facility is used to specify what type of program is logging the
    ; message. This lets syslogd specify that messages from different facilities
    ; will be handled differently.
    ; See syslog(3) for possible values (ex daemon equiv LOG_DAEMON)
    ; Default Value: daemon
    ;syslog.facility = daemon
    
    ; syslog_ident is prepended to every message. If you have multiple FPM
    ; instances running on the same server, you can change the default value
    ; which must suit common needs.
    ; Default Value: php-fpm
    ;syslog.ident = php-fpm
    
    ; Log level
    ; Possible Values: alert, error, warning, notice, debug
    ; Default Value: notice
    log_level = warning
    
    ; If this number of child processes exit with SIGSEGV or SIGBUS within the time
    ; interval set by emergency_restart_interval then FPM will restart. A value
    ; of '0' means 'Off'.
    ; Default Value: 0
    ;emergency_restart_threshold = 0
    
    ; Interval of time used by emergency_restart_interval to determine when 
    ; a graceful restart will be initiated.  This can be useful to work around
    ; accidental corruptions in an accelerator's shared memory.
    ; Available Units: s(econds), m(inutes), h(ours), or d(ays)
    ; Default Unit: seconds
    ; Default Value: 0
    emergency_restart_interval = 24h
    
    ; Time limit for child processes to wait for a reaction on signals from master.
    ; Available units: s(econds), m(inutes), h(ours), or d(ays)
    ; Default Unit: seconds
    ; Default Value: 0
    process_control_timeout = 5s
    
    ; The maximum number of processes FPM will fork. This has been design to control
    ; the global number of processes when using dynamic PM within a lot of pools.
    ; Use it with caution.
    ; Note: A value of 0 indicates no limit
    ; Default Value: 0
    ; process.max = 128
    
    ; Specify the nice(2) priority to apply to the master process (only if set)
    ; The value can vary from -19 (highest priority) to 20 (lower priority)
    ; Note: - It will only work if the FPM master process is launched as root
    ;       - The pool process will inherit the master process priority
    ;         unless it specified otherwise
    ; Default Value: no set
    ; process.priority = -19
    
    ; Send FPM to background. Set to 'no' to keep FPM in foreground for debugging.
    ; Default Value: yes
    daemonize = no 
     
    ; Set open file descriptor rlimit for the master process.
    ; Default Value: system defined value
    rlimit_files = 10240
     
    ; Set max core size rlimit for the master process.
    ; Possible Values: 'unlimited' or an integer greater or equal to 0
    ; Default Value: system defined value
    ;rlimit_core = 0
    
    ; Specify the event mechanism FPM will use. The following is available:
    ; - select     (any POSIX os)
    ; - poll       (any POSIX os)
    ; - epoll      (linux >= 2.5.44)
    ; - kqueue     (FreeBSD >= 4.1, OpenBSD >= 2.9, NetBSD >= 2.0)
    ; - /dev/poll  (Solaris >= 7)
    ; - port       (Solaris >= 10)
    ; Default Value: not set (auto detection)
    ;events.mechanism = epoll
    
    ; When FPM is build with systemd integration, specify the interval,
    ; in second, between health report notification to systemd.
    ; Set to 0 to disable.
    ; Available Units: s(econds), m(inutes), h(ours)
    ; Default Unit: seconds
    ; Default value: 10
    ;systemd_interval = 10
    
    ;;;;;;;;;;;;;;;;;;;;
    ; Pool Definitions ; 
    ;;;;;;;;;;;;;;;;;;;;
    
    ; Multiple pools of child processes may be started with different listening
    ; ports and different management options.  The name of the pool will be
    ; used in logs and stats. There is no limitation on the number of pools which
    ; FPM can handle. Your system will tell you anyway :)
    
    ; Start a new pool named 'www'.
    ; the variable $pool can we used in any directive and will be replaced by the
    ; pool name ('www' here)
    [www]
    
    ; Per pool prefix
    ; It only applies on the following directives:
    ; - 'access.log'
    ; - 'slowlog'
    ; - 'listen' (unixsocket)
    ; - 'chroot'
    ; - 'chdir'
    ; - 'php_values'
    ; - 'php_admin_values'
    ; When not set, the global prefix (or /usr/local/php) applies instead.
    ; Note: This directive can also be relative to the global prefix.
    ; Default Value: none
    ;prefix = /path/to/pools/$pool
    
    ; Unix user/group of processes
    ; Note: The user is mandatory. If the group is not set, the default user's group
    ;       will be used.
    user = nobody
    group = nobody
    
    ; The address on which to accept FastCGI requests.
    ; Valid syntaxes are:
    ;   'ip.add.re.ss:port'    - to listen on a TCP socket to a specific IPv4 address on
    ;                            a specific port;
    ;   '[ip:6:addr:ess]:port' - to listen on a TCP socket to a specific IPv6 address on
    ;                            a specific port;
    ;   'port'                 - to listen on a TCP socket to all IPv4 addresses on a
    ;                            specific port;
    ;   '[::]:port'            - to listen on a TCP socket to all addresses
    ;                            (IPv6 and IPv4-mapped) on a specific port;
    ;   '/path/to/unix/socket' - to listen on a unix socket.
    ; Note: This value is mandatory.
    ;listen = 127.0.0.1:9000
    listen = 0.0.0.0:9000
    
    ; Set listen(2) backlog.
    ; Default Value: 65535 (-1 on FreeBSD and OpenBSD)
    ;listen.backlog = 65535
    
    ; Set permissions for unix socket, if one is used. In Linux, read/write
    ; permissions must be set in order to allow connections from a web server. Many
    ; BSD-derived systems allow connections regardless of permissions. 
    ; Default Values: user and group are set as the running user
    ;                 mode is set to 0660
    listen.owner = nobody
    listen.group = nobody
    ;listen.mode = 0660
    ; When POSIX Access Control Lists are supported you can set them using
    ; these options, value is a comma separated list of user/group names.
    ; When set, listen.owner and listen.group are ignored
    ;listen.acl_users =
    ;listen.acl_groups =
     
    ; List of addresses (IPv4/IPv6) of FastCGI clients which are allowed to connect.
    ; Equivalent to the FCGI_WEB_SERVER_ADDRS environment variable in the original
    ; PHP FCGI (5.2.2+). Makes sense only with a tcp listening socket. Each address
    ; must be separated by a comma. If this value is left blank, connections will be
    ; accepted from any ip address.
    ; Default Value: any
    ; listen.allowed_clients = 127.0.0.1
    
    ; Specify the nice(2) priority to apply to the pool processes (only if set)
    ; The value can vary from -19 (highest priority) to 20 (lower priority)
    ; Note: - It will only work if the FPM master process is launched as root
    ;       - The pool processes will inherit the master process priority
    ;         unless it specified otherwise
    ; Default Value: no set
    ; process.priority = -19
    
    ; Set the process dumpable flag (PR_SET_DUMPABLE prctl) even if the process user
    ; or group is differrent than the master process user. It allows to create process
    ; core dump and ptrace the process for the pool user.
    ; Default Value: no
    ; process.dumpable = yes
    
    ; Choose how the process manager will control the number of child processes.
    ; Possible Values:
    ;   static  - a fixed number (pm.max_children) of child processes;
    ;   dynamic - the number of child processes are set dynamically based on the
    ;             following directives. With this process management, there will be
    ;             always at least 1 children.
    ;             pm.max_children      - the maximum number of children that can
    ;                                    be alive at the same time.
    ;             pm.start_servers     - the number of children created on startup.
    ;             pm.min_spare_servers - the minimum number of children in 'idle'
    ;                                    state (waiting to process). If the number
    ;                                    of 'idle' processes is less than this
    ;                                    number then some children will be created.
    ;             pm.max_spare_servers - the maximum number of children in 'idle'
    ;                                    state (waiting to process). If the number
    ;                                    of 'idle' processes is greater than this
    ;                                    number then some children will be killed.
    ;  ondemand - no children are created at startup. Children will be forked when
    ;             new requests will connect. The following parameter are used:
    ;             pm.max_children           - the maximum number of children that
    ;                                         can be alive at the same time.
    ;             pm.process_idle_timeout   - The number of seconds after which
    ;                                         an idle process will be killed.
    ; Note: This value is mandatory.
    pm = dynamic
    
    ; The number of child processes to be created when pm is set to 'static' and the
    ; maximum number of child processes when pm is set to 'dynamic' or 'ondemand'.
    ; This value sets the limit on the number of simultaneous requests that will be
    ; served. Equivalent to the ApacheMaxClients directive with mpm_prefork.
    ; Equivalent to the PHP_FCGI_CHILDREN environment variable in the original PHP
    ; CGI. The below defaults are based on a server without much resources. Don't
    ; forget to tweak pm.* to fit your needs.
    ; Note: Used when pm is set to 'static', 'dynamic' or 'ondemand'
    ; Note: This value is mandatory.
    pm.max_children = 200
    
    ; The number of child processes created on startup.
    ; Note: Used only when pm is set to 'dynamic'
    ; Default Value: min_spare_servers + (max_spare_servers - min_spare_servers) / 2
    pm.start_servers = 50
    
    ; The desired minimum number of idle server processes.
    ; Note: Used only when pm is set to 'dynamic'
    ; Note: Mandatory when pm is set to 'dynamic'
    pm.min_spare_servers = 50
    
    ; The desired maximum number of idle server processes.
    ; Note: Used only when pm is set to 'dynamic'
    ; Note: Mandatory when pm is set to 'dynamic'
    pm.max_spare_servers = 100
    
    ; The number of seconds after which an idle process will be killed.
    ; Note: Used only when pm is set to 'ondemand'
    ; Default Value: 10s
    ;pm.process_idle_timeout = 10s;
     
    ; The number of requests each child process should execute before respawning.
    ; This can be useful to work around memory leaks in 3rd party libraries. For
    ; endless request processing specify '0'. Equivalent to PHP_FCGI_MAX_REQUESTS.
    ; Default Value: 0
    pm.max_requests = 51200
    
    ; The URI to view the FPM status page. If this value is not set, no URI will be
    ; recognized as a status page. It shows the following informations:
    ;   pool                 - the name of the pool;
    ;   process manager      - static, dynamic or ondemand;
    ;   start time           - the date and time FPM has started;
    ;   start since          - number of seconds since FPM has started;
    ;   accepted conn        - the number of request accepted by the pool;
    ;   listen queue         - the number of request in the queue of pending
    ;                          connections (see backlog in listen(2));
    ;   max listen queue     - the maximum number of requests in the queue
    ;                          of pending connections since FPM has started;
    ;   listen queue len     - the size of the socket queue of pending connections;
    ;   idle processes       - the number of idle processes;
    ;   active processes     - the number of active processes;
    ;   total processes      - the number of idle + active processes;
    ;   max active processes - the maximum number of active processes since FPM
    ;                          has started;
    ;   max children reached - number of times, the process limit has been reached,
    ;                          when pm tries to start more children (works only for
    ;                          pm 'dynamic' and 'ondemand');
    ; Value are updated in real time.
    ; Example output:
    ;   pool:                 www
    ;   process manager:      static
    ;   start time:           01/Jul/2011:17:53:49 +0200
    ;   start since:          62636
    ;   accepted conn:        190460
    ;   listen queue:         0
    ;   max listen queue:     1
    ;   listen queue len:     42
    ;   idle processes:       4
    ;   active processes:     11
    ;   total processes:      15
    ;   max active processes: 12
    ;   max children reached: 0
    ;
    ; By default the status page output is formatted as text/plain. Passing either
    ; 'html', 'xml' or 'json' in the query string will return the corresponding
    ; output syntax. Example:
    ;   http://www.foo.bar/status
    ;   http://www.foo.bar/status?json
    ;   http://www.foo.bar/status?html
    ;   http://www.foo.bar/status?xml
    ;
    ; By default the status page only outputs short status. Passing 'full' in the
    ; query string will also return status for each pool process.
    ; Example: 
    ;   http://www.foo.bar/status?full
    ;   http://www.foo.bar/status?json&full
    ;   http://www.foo.bar/status?html&full
    ;   http://www.foo.bar/status?xml&full
    ; The Full status returns for each process:
    ;   pid                  - the PID of the process;
    ;   state                - the state of the process (Idle, Running, ...);
    ;   start time           - the date and time the process has started;
    ;   start since          - the number of seconds since the process has started;
    ;   requests             - the number of requests the process has served;
    ;   request duration     - the duration in µs of the requests;
    ;   request method       - the request method (GET, POST, ...);
    ;   request URI          - the request URI with the query string;
    ;   content length       - the content length of the request (only with POST);
    ;   user                 - the user (PHP_AUTH_USER) (or '-' if not set);
    ;   script               - the main script called (or '-' if not set);
    ;   last request cpu     - the %cpu the last request consumed
    ;                          it's always 0 if the process is not in Idle state
    ;                          because CPU calculation is done when the request
    ;                          processing has terminated;
    ;   last request memory  - the max amount of memory the last request consumed
    ;                          it's always 0 if the process is not in Idle state
    ;                          because memory calculation is done when the request
    ;                          processing has terminated;
    ; If the process is in Idle state, then informations are related to the
    ; last request the process has served. Otherwise informations are related to
    ; the current request being served.
    ; Example output:
    ;   ************************
    ;   pid:                  31330
    ;   state:                Running
    ;   start time:           01/Jul/2011:17:53:49 +0200
    ;   start since:          63087
    ;   requests:             12808
    ;   request duration:     1250261
    ;   request method:       GET
    ;   request URI:          /test_mem.php?N=10000
    ;   content length:       0
    ;   user:                 -
    ;   script:               /home/fat/web/docs/php/test_mem.php
    ;   last request cpu:     0.00
    ;   last request memory:  0
    ;
    ; Note: There is a real-time FPM status monitoring sample web page available
    ;       It's available in: /usr/local/php/share/php/fpm/status.html
    ;
    ; Note: The value must start with a leading slash (/). The value can be
    ;       anything, but it may not be a good idea to use the .php extension or it
    ;       may conflict with a real PHP file.
    ; Default Value: not set 
    pm.status_path = /status
     
    ; The ping URI to call the monitoring page of FPM. If this value is not set, no
    ; URI will be recognized as a ping page. This could be used to test from outside
    ; that FPM is alive and responding, or to
    ; - create a graph of FPM availability (rrd or such);
    ; - remove a server from a group if it is not responding (load balancing);
    ; - trigger alerts for the operating team (24/7).
    ; Note: The value must start with a leading slash (/). The value can be
    ;       anything, but it may not be a good idea to use the .php extension or it
    ;       may conflict with a real PHP file.
    ; Default Value: not set
    ;ping.path = /ping
    
    ; This directive may be used to customize the response of a ping request. The
    ; response is formatted as text/plain with a 200 response code.
    ; Default Value: pong
    ;ping.response = pong
    
    ; The access log file
    ; Default: not set
    ;access.log = log/$pool.access.log
    
    ; The access log format.
    ; The following syntax is allowed
    ;  %%: the '%' character
    ;  %C: %CPU used by the request
    ;      it can accept the following format:
    ;      - %{user}C for user CPU only
    ;      - %{system}C for system CPU only
    ;      - %{total}C  for user + system CPU (default)
    ;  %d: time taken to serve the request
    ;      it can accept the following format:
    ;      - %{seconds}d (default)
    ;      - %{miliseconds}d
    ;      - %{mili}d
    ;      - %{microseconds}d
    ;      - %{micro}d
    ;  %e: an environment variable (same as $_ENV or $_SERVER)
    ;      it must be associated with embraces to specify the name of the env
    ;      variable. Some exemples:
    ;      - server specifics like: %{REQUEST_METHOD}e or %{SERVER_PROTOCOL}e
    ;      - HTTP headers like: %{HTTP_HOST}e or %{HTTP_USER_AGENT}e
    ;  %f: script filename
    ;  %l: content-length of the request (for POST request only)
    ;  %m: request method
    ;  %M: peak of memory allocated by PHP
    ;      it can accept the following format:
    ;      - %{bytes}M (default)
    ;      - %{kilobytes}M
    ;      - %{kilo}M
    ;      - %{megabytes}M
    ;      - %{mega}M
    ;  %n: pool name
    ;  %o: output header
    ;      it must be associated with embraces to specify the name of the header:
    ;      - %{Content-Type}o
    ;      - %{X-Powered-By}o
    ;      - %{Transfert-Encoding}o
    ;      - ....
    ;  %p: PID of the child that serviced the request
    ;  %P: PID of the parent of the child that serviced the request
    ;  %q: the query string 
    ;  %Q: the '?' character if query string exists
    ;  %r: the request URI (without the query string, see %q and %Q)
    ;  %R: remote IP address
    ;  %s: status (response code)
    ;  %t: server time the request was received
    ;      it can accept a strftime(3) format:
    ;      %d/%b/%Y:%H:%M:%S %z (default)
    ;  %T: time the log has been written (the request has finished)
    ;      it can accept a strftime(3) format:
    ;      %d/%b/%Y:%H:%M:%S %z (default)
    ;  %u: remote user
    ;
    ; Default: "%R - %u %t "%m %r" %s"
    ;access.format = "%R - %u %t "%m %r%Q%q" %s %f %{mili}d %{kilo}M %C%%"
     
    ; The log file for slow requests
    ; Default Value: not set
    ; Note: slowlog is mandatory if request_slowlog_timeout is set
    slowlog = log/$pool.log.slow
     
    ; The timeout for serving a single request after which a PHP backtrace will be
    ; dumped to the 'slowlog' file. A value of '0s' means 'off'.
    ; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
    ; Default Value: 0
    request_slowlog_timeout = 10
     
    ; The timeout for serving a single request after which the worker process will
    ; be killed. This option should be used when the 'max_execution_time' ini option
    ; does not stop script execution for some reason. A value of '0' means 'off'.
    ; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
    ; Default Value: 0
    request_terminate_timeout = 600
     
    ; Set open file descriptor rlimit.
    ; Default Value: system defined value
    rlimit_files = 10240
     
    ; Set max core size rlimit.
    ; Possible Values: 'unlimited' or an integer greater or equal to 0
    ; Default Value: system defined value
    ;rlimit_core = 0
     
    ; Chroot to this directory at the start. This value must be defined as an
    ; absolute path. When this value is not set, chroot is not used.
    ; Note: you can prefix with '$prefix' to chroot to the pool prefix or one
    ; of its subdirectories. If the pool prefix is not set, the global prefix
    ; will be used instead.
    ; Note: chrooting is a great security feature and should be used whenever 
    ;       possible. However, all PHP paths will be relative to the chroot
    ;       (error_log, sessions.save_path, ...).
    ; Default Value: not set
    ;chroot = 
     
    ; Chdir to this directory at the start.
    ; Note: relative path can be used.
    ; Default Value: current directory or / when chroot
    ;chdir = /var/www
     
    ; Redirect worker stdout and stderr into main error log. If not set, stdout and
    ; stderr will be redirected to /dev/null according to FastCGI specs.
    ; Note: on highloaded environement, this can cause some delay in the page
    ; process time (several ms).
    ; Default Value: no
    ;catch_workers_output = yes
    
    ; Clear environment in FPM workers
    ; Prevents arbitrary environment variables from reaching FPM worker processes
    ; by clearing the environment in workers before env vars specified in this
    ; pool configuration are added.
    ; Setting to "no" will make all environment variables available to PHP code
    ; via getenv(), $_ENV and $_SERVER.
    ; Default Value: yes
    ;clear_env = no
    
    ; Limits the extensions of the main script FPM will allow to parse. This can
    ; prevent configuration mistakes on the web server side. You should only limit
    ; FPM to .php extensions to prevent malicious users to use other extensions to
    ; exectute php code.
    ; Note: set an empty value to allow all extensions.
    ; Default Value: .php
    ;security.limit_extensions = .php .php3 .php4 .php5
     
    ; Pass environment variables like LD_LIBRARY_PATH. All $VARIABLEs are taken from
    ; the current environment.
    ; Default Value: clean env
    ;env[HOSTNAME] = $HOSTNAME
    ;env[PATH] = /usr/local/bin:/usr/bin:/bin
    ;env[TMP] = /tmp
    ;env[TMPDIR] = /tmp
    ;env[TEMP] = /tmp
    
    ; Additional php.ini defines, specific to this pool of workers. These settings
    ; overwrite the values previously defined in the php.ini. The directives are the
    ; same as the PHP SAPI:
    ;   php_value/php_flag             - you can set classic ini defines which can
    ;                                    be overwritten from PHP call 'ini_set'. 
    ;   php_admin_value/php_admin_flag - these directives won't be overwritten by
    ;                                     PHP call 'ini_set'
    ; For php_*flag, valid values are on, off, 1, 0, true, false, yes or no.
    
    ; Defining 'extension' will load the corresponding shared extension from
    ; extension_dir. Defining 'disable_functions' or 'disable_classes' will not
    ; overwrite previously defined php.ini values, but will append the new value
    ; instead.
    
    ; Note: path INI options can be relative and will be expanded with the prefix
    ; (pool, global or /usr/local/php)
    
    ; Default Value: nothing is defined by default except the values in php.ini and
    ;                specified at startup with the -d argument
    ;php_admin_value[sendmail_path] = /usr/sbin/sendmail -t -i -f www@my.domain.com
    ;php_flag[display_errors] = off
    ;php_admin_value[error_log] = /var/log/fpm-php.www.log
    ;php_admin_flag[log_errors] = on
    ;php_admin_value[memory_limit] = 32M
    php-fpm.conf

          docker build -t php:v1 -f Dockerfile-php .           # 使用 Dockerfile-nginx 文件构建一个基础镜像 php:v1

          docker images                                                   #确认 php:v1镜像是否构建成功

          docker run -d --name php01 php:v1                  # 使用php:v1镜像启动一个容器 php01

          docker ps -l                                                      # 确认 容器php01是否可以成功启动

          docker exec -it php01 bash                              # 进入容器php01 bash环境,确定一下php是否安装成功

      2、dockerfile的作用

          docker可以根据Dockerfile中的指令来构建docker镜像。

          Dockerfile是一个文本文件,其应当包含用户想要构建一个镜像的所有指令。

    FROM            # build是基于哪个镜像来构建新的镜像
    ENV PATH $PATH:/usr/local/nginx/sbin   # 配置环境变量,注意此配置会在container中生效
    COPY src dest   # docker内部文件系统中拷贝
    ADD src dest    # 将宿主机本地文件拷贝到docker中
    RUN command     # 执行linux命令
    CMD ["sh","/code/start.sh"]  # 启动服务
    EXPOSE 8080     # 暴露端口
    WORKDIR /path   #在此指令之后的操作,以及container的默认进入路径都将时 /path目录
    VOLUME ['/path1', '/path2']   # 基于此镜像创建的container都将拥有VOLUME中指定的挂在目录

      3、Dockerfile编写优化

          1. 一个docker image只负责一个职责。当有多个服务时,请将服务分别docker化,然后组合使用这些docker images。

          2. 就像编程一样,当一个字符串出现多次时,请用ARG来声明变量取代hard code。

          3. 拷贝文件到镜像时,ADD负责网络资源的拷贝,COPY负责本地文件的COPY。

          4. 尽量使用cache,docker在build镜像时可以利用缓存,缓存的原则时:当重复构建时,如果单个指令的内容没有变化,则docker会默认使用cache。

          5. 将相同变化频率的RUN指令合并成一个。注意,一定要是相同变化频率的RUN命令才能合并成一个,不然缓存的特性就无法使用了。

          6. 合理使用.dockerignore,减少images的体积。

          7. 尽量使用CMD,VOLUME将image进行服务化。

          8. 使用LABEL对image进行元信息的描述。

          9. 单一服务的基础镜像如何可以请使用alpine版本的镜像来减少image的体积。

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  • 原文地址:https://www.cnblogs.com/jiaxinzhu/p/12416777.html
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